Questions on Algebra: Divisibility and Prime Numbers answered by real tutors!

Tutors Answer Your Questions about Divisibility and Prime Numbers (FREE)

Question 382152: If a number 774958A96B is to be divisible by 8 and 9, the values of A and B, respectively, will be:
Click here to see answer by Jk22(389)

Question 382152: If a number 774958A96B is to be divisible by 8 and 9, the values of A and B, respectively, will be:
Click here to see answer by nayha(6)

Question 382921: use long division to find the quotient when 2x^5+4x^4-x^3-x^2+7 is divided by 2x^2-1
Click here to see answer by CharlesG2(828)

Question 387993: What is the greatest prime that must be used to determine if 2089 is a prime?
hannah_janeczak@my.uri.edu
Click here to see answer by jsmallt9(3296)

Question 389055: What is 8
5 ÷ 40
15 ?

Click here to see answer by Fombitz(13828)

Question 389073: How do you determine the common factors in an expression
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Question 389506: Estimate the quotient:17 11/12 divided by 6 1/10 I must show all the work and I do not understand how to do this problem
Click here to see answer by ankor@dixie-net.com(15652)

Question 390064: how many 2-digit prime numbers have 3 or 7 in the ones digit
Click here to see answer by richard1234(5390)

Question 392149: if p,r,and s are three different prime numbers greater than 2, and n= p x r x s, how many positive factors, including 1 and n, does n have?
Click here to see answer by robertb(4012)

Question 392433: what is the time of the loan if:
Balance =$5000
Principal= $4000
Interest rate = 5%
Click here to see answer by rfer(12660)

Question 393572: a baseball league forms using a total of 12 coachs, 78 palyers, 24 baseball bats and 96 baseballs what is the greatest number of teams that can be formed that have equal numbers of coaches players baseball bats and baseballs?
Click here to see answer by edjones(7569)

Question 394789: what is letter x divide 3 takeaway 1

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Question 396904: Are there any number that are less than 200 and are divisible by four prime numbers?
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Question 400683: what do you do if an algebra problem says divide by 0?
Click here to see answer by Alan3354(30993)

Question 400719: 216 to the 3rd power equal 15m times 6m

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Question 400874: Prove: Let p(sub1),p(sub2),...,p(sub n)be primes. Then, p(sub1) x p(sub2) x ... x p(sub n)+ 1 is not divisible by any of these primes. (x indicates multiplication)
Click here to see answer by richard1234(5390)

Question 401533: How do you solve each problem using at least two methods other than the traditional algorithm? Can anyone help? Please!

452 + 721 + 908
(520)(69)

Click here to see answer by MathLover1(6632)

Question 401577: How do you solve this problem using at least two methods other than the traditional algorithm.
(520) (69)
Can anyone help?
Click here to see answer by richard1234(5390)

Question 402802: simplify (-6)2
Click here to see answer by Alan3354(30993)

Question 402812: what is the prime factorization of 75
Click here to see answer by rfer(12660)

Question 402812: what is the prime factorization of 75
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Question 403336: Bob, Martha and George each have 2010 apples. They decide to share their apples with a group of their own friends. The sum of the number of friends sharing the apples is 1273. What is the sum of the apples the three of them are left with after the sharing?
I am getting the answer 938 apples which is not correct. Please let me know if there is different response to the problem.
Click here to see answer by solver91311(16885)

Question 403907: How many sets {a,b,c} of three prime numbers are there such that the sum of any two numbers from the set is also prime?
choose the answer and explain the reason to choose your response
infinitely many
no such sets
exactly one
more than one, but finitely many
Click here to see answer by richard1234(5390)

Question 405580: I am needing some help with this...
Show work, Factor and if Prime state this...
10a^2+25a-15
Click here to see answer by jim_thompson5910(28595)

Question 405582: I am needing some help with this...
Factor completly, show work and if prime state this...
x^2-3xy+9y^2 I believe this is Prime, but is there any work to be shown with it or do I just state it is Prime?
Click here to see answer by Alan3354(30993)

Question 405629: write a common denominator for the following fractions: 2/3 3/4 5/8 write equivalent fractions using the common denominator then order the original fractions from least to greatest.
Click here to see answer by checkley79(3050)

Question 406148: Use the "difference of squares" rule to factor the following expression
36x^2-9y^2
Click here to see answer by MathLover1(6632)

Question 406146: I am needing some help please.
Factor out the GCF from the expression and show work.
25x^5-20x^4
Click here to see answer by ankor@dixie-net.com(15652)

Question 407263: I am really needing help.
The area of a rectangular athletic field is represented by the expression 81y^2-16z^2 sq meters. Write an algebriac expression to represent one possible set of dimensions (in the sense "length times width") of the athletic field. Include correct units.
Click here to see answer by nerdybill(6958)

Question 407258: Need some help please:
The area of a rectangular athletic field is represented by the expression 13z^6+5z^3+12z sq meters. Write an algebric expression to represent one possible set of dimensions (in the sense "length times width") of the athletic field. Include correct units and show work.
Click here to see answer by nerdybill(6958)

Question 407375: I am learning prime factored form and i dont undersand it , i know its simple but how do i find it? the problem I just did was the prime factored form of 45.... myanswer was 45=5x9 is that correct ? but now i am stuck on 78 how do i do it????? please help me.
Click here to see answer by jim_thompson5910(28595)

Question 407261: I am really needing help.
Factor the expression 81x^2-54xy+9y^2 into a product of binomials.
Click here to see answer by ewatrrr(10682)

Question 408721: could someone please show me how to find correct prime factorization of the number 105.

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Question 409184: What is the least common mutiple of 18,27,5
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Question 409634: Given that √3.47=1.863 , √34.7=5.891, find the value of √34700 without using a calculator
Click here to see answer by MathLover1(6632)

Question 409629: Given 60=2^2 x 3 x 5 and 1050=2 x 3x 5^2 x 7, find
(a) the smallest integer m such that 60m is a perfect cube
(b) the smallest positive integer value of n for which 60n is a multiple of 1050.
Click here to see answer by richard1234(5390)

Question 411137: how do you completly factor -18x^2y^3
Click here to see answer by rfer(12660)

Question 411137: how do you completly factor -18x^2y^3
Click here to see answer by Alan3354(30993)

Question 411738: Show that any prime number greater than 3 has remainder 1 or 5 when divided by 6;
Click here to see answer by Edwin McCravy(8909)

Question 412224: What is the GCF of 16xy and 24xy?
Click here to see answer by josmiceli(9678)

Question 414262: I am stuck. Please help. c=2cd over a-d, for d ?
Click here to see answer by ankor@dixie-net.com(15652)

Question 415459: Clue 1: I am a prime numeber less than 75
Clue 2: my digits sum to 13
Click here to see answer by richard1234(5390)

Question 416821: What is the greatest prime you must consider to test whether 503 is prime?
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Question 416822: Find the greatest four-digit number that has exactly three positive factors.
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Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440