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

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

Question 798251: If 8 less than the product of a number and -3 is greater than 7, which of the following could be that number?
Click here to see answer by stanbon(75887)

Question 799998: What is the answer for 4�3x6(4�9)? Please help me.
Click here to see answer by rfer(16322)

Question 800377: I am less then 90, I am a multiple of 5, and the sum of my digits is 9
Click here to see answer by josmiceli(19441)

Question 800889: A student found that all three digit numbers of the form abc, where a+b is a multiple of 7, are divisible by 7. She would like to know why. Give an algebraic expression.
Click here to see answer by KMST(5328)

Question 803431: for each integer n, its square can be written as n^2 = 10*k+r where r is an integer in the range 0 less than or equal to r less than or equal to 9.
Determine which values of r can occur and which cannot.
Click here to see answer by Edwin McCravy(20054)

Question 805211: what is the answer to 3x + 2x in simplest form please solve this for me
Click here to see answer by Alan3354(69443)

Question 808883: I need to simplify [-6(2x - 5) - 4x + 8]
what is the answer?
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Question 809374: Write 54 as a product of prime factors

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Question 815177: if both r & s are integers > 1 ,also 11(s-1)=13(r-1) then the remainder when r+s is divided by 8 is ?
A.2
B.3
C.5
D.7
Click here to see answer by KMST(5328)

Question 816098: how do you write 50 as a product of prime factors
Click here to see answer by richwmiller(17219)

Question 816219: Start with smallest integer,
p1 + p2 + p3 + p4....pn >2007
If p1 =1, p2 =2, p3=3, p4 =5...all are prime numbers.
What is the value of pn?
Click here to see answer by ewatrrr(24785)

Question 816860: The sum of two consecutive odd numbers is 276. What is the larger number?
Click here to see answer by richwmiller(17219)

Question 821225: i am a three digit number. among my factors are 5 and 8. by 3 digits add up to only 2. what number am i?
Click here to see answer by ankor@dixie-net.com(22740)

Question 821704: What is the smallest whole number divisible by the first three prime numbers larger than 10?
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Question 823707: Please help me fast for this problem!
how many couples of (p,q) If known LCM of p and q is 3300?
Thank youu!! :D
Click here to see answer by Edwin McCravy(20054)

Question 788055: please help me solve !
Click here to see answer by tommyt3rd(5050)

Question 789020: find the smallest square number that is divisible by 6, 18 and 21?
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Question 785741: When 391758 and 394915 are divided by a certain three digit number, the three digit remainder is
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Question 790474: what sum or diffrence is equivalent to the expression
(9x-6)/3
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Question 783031: If the product of the integers a, b, and c is 1, then what is the smallest possible value of (a+1)(b+1)(c+1)?

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Question 780221: find the largest four digit number which is divisible by 5,8,and 9
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Question 787628: (((2)^400)/9)=?
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Question 778576: a design is made by arranging a certain number of square tiles to form a rectangular array as shown. find the number of possible designs if there are 41 tiles.
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Question 788381: find a composite number for each of the following numbers to make each a pair of coprime numbers.
a-80,b-63,c-135,d-88.
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Question 772173: Find the GCF for 50 and 35
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Question 785777: 1) The smallest number divisible by 2? 7,6,0,4,3,1,2,?
2)The biggest number divisible by 8? 3,1,7,9,5,?,7,2
3)Any number divisible by 11? 9,2,3,?,9,3
Above question please send the answer with example.
Click here to see answer by tommyt3rd(5050)

Question 794566: find the prime factorization for the following two times two times five times seven times eleven
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Question 818148: For A = {x|x is an integer greater than 7} and B = {x|x is an integer less than or equal to 12}, determine A∩B and A∪B.

This is the question for the assignment.
Click here to see answer by tommyt3rd(5050)

Question 825146: how do you work out the lcm of two numbers
what is the lcm of 32 and 14
Click here to see answer by math-vortex(648)

Question 825146: how do you work out the lcm of two numbers
what is the lcm of 32 and 14
Click here to see answer by josgarithmetic(39613)

Question 825148: what is the hcf of 24 and 22
Click here to see answer by safa(1)

Question 825156: what is BID MAS?
Click here to see answer by KMST(5328)

Question 825277: how to work out and what is the LCM and HCF of 24 and 22 please answer ASAP
Click here to see answer by josgarithmetic(39613)

Question 825720: What are the two numbers
whose sum is 23 and its absolute difference is 5?

Click here to see answer by math-vortex(648)

Question 825147: what is the lcm of 24 and 22
Click here to see answer by sarcasticpie(12)

Question 817604: Please help me on this question it says that I have to find the divisible number please me thank you
Click here to see answer by sarcasticpie(12)

Question 827494: what is 56 divisible by.
Click here to see answer by Edwin McCravy(20054)

Question 827494: what is 56 divisible by.
Click here to see answer by Alan3354(69443)

Question 828503: I am a number between 20 and 30, I am not divisible by 6 and the sum of my factor is 31, what number am I?
Click here to see answer by KMST(5328)

Question 830250: (4m-3n+5)-(3m+4n+8)

Click here to see answer by jim_thompson5910(35256)

Question 831380: The LCM of 6, 12, and n is 660. Find all the possible values of n.
Click here to see answer by KMST(5328)

Question 833391: Cn someone pls help me with this question? tks!
Is the product of HCF n LCM of any 3 numbers always equal t the product of the 3 numbers? If yes, show 3 pairs as example.
If no, show a counter-example.
Click here to see answer by KMST(5328)

Question 835931: if a number is divisible by 40 and remainder is 30 what is the remainder is the number is divisible by 20
Click here to see answer by richwmiller(17219)

Question 836323: What is the largest value of X makes this number 982,7X1,588 divisible by 9
Click here to see answer by jim_thompson5910(35256)

Question 836325: What is the largest value of X makes this number 577,5X7,115 divisible by 9
Click here to see answer by LinnW(1048)

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, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295