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

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

Question 130809: Find the prim factorization of 49
Click here to see answer by checkley71(8403)

Question 132833: What is the result of dividing x^3-6x+7 by x-2?
Answer choices:
A) x^2-2x-2+ 11/x-2
B) x^2-2x-2+ 3/x-2
C) x^2+2x-2+ 3/x-2
D) x^2+2x-2 -11/x-2
E) x^2-2x+2+ 3/x-2
Click here to see answer by edjones(7569)

Question 134566: Are negative numbers prime?
Click here to see answer by vleith(2825)

Question 135829: the GCF of 18 and 49
Click here to see answer by checkley77(12569)

Question 136217: Dear sir/madam,
I am stucked with the following problems and hope that you could guide me.
1. (a) Given c>0, prove that lcm(ac,bc)= clcm(a,b)
(b) Prove that one of any m consecutive integers must be divisible by m.
Thank you very much.
Best wishes,
Mr Tan Guodong
Click here to see answer by solver91311(17077)

Question 137012: What does this question mean? The sum of 2 consecutive odd integers is 1472. Find the two integers.

Click here to see answer by ankor@dixie-net.com(15746)

Question 137096: Need help!!
I need to find four numbers which are divisors of 2 to the 64th power minus 1!!
Thanks.
Click here to see answer by jedidiah(6)

Question 139196: I'm having problems understanding prime factors. For example 675, how would you break that down ?
Click here to see answer by solver91311(17077)

Question 139389: How can I express this question (5*11=55/6Reminder 1)using symbols,diagram or ICT
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Question 141663: what is 3x+5=2x+1?
Click here to see answer by checkley77(12569)

Question 137013: Find the measure of the complement of a 18 degree angle.
Find the measure of the suppiement of a angle 43degree angle.
Click here to see answer by solver91311(17077)

Question 146109: 1295029 is divisible by which number?
Click here to see answer by stanbon(57962)

Question 146745: Write an algebraic expression that proves the difference of the square of any two odd numbers must be divisible by 8.
Click here to see answer by Alan3354(31515)

Question 153333: I am not sure if I am in the right place here but would appreciate the use of the big brains that inhabit this site.
Q: The letters A-J represent each of the digits 0 to 9 so that ABC -d -e -f - g -h - i - j = 100. What is the 3 digit number ABC?
Many thanks.
Bill
Click here to see answer by mangopeeler07(462)

Question 153696: Can you find three consecutive odd numbers that are prime numbers? And is it possible to find another set of three consecutive odd numbers that are prime. Explain
Click here to see answer by Edwin McCravy(8999)

Question 153695: Can you find three consecutive odd numbers that are prime number?

Click here to see answer by jim_thompson5910(28705)

Question 153809: There are 13 flavors at the local icecream parlor.Is the the number 13 prime or a composite number?If it is composite,write the number as the product of prime numbers.
Click here to see answer by orca(409)

Question 154706: I don't know how to do this math.
Click here to see answer by Alan3354(31515)

Question 154794: what is the lowest common mutltiple of 8,28,48
Click here to see answer by orca(409)

Question 154793: what is the lowest common mutltiple of 8,25,48
Click here to see answer by checkley77(12569)

Question 154846: what is the value of X in this equation?
X - 87.4 = 57.52
Click here to see answer by stanbon(57962)

Question 154848: what is the value of X in this equation?
X + 4.9 = 45.3
Click here to see answer by jojo14344(1512)

Question 154925: Hope I am in the right place. My grandson is stumped. The book is from Holt, Rinehart, Winston. Sorry do not have ISBN. School copies pages.
Question is this: The quotient of 12 and the sum of 8 and 3 written as an algebraic expression. We came up with 8+3 over 12.
Click here to see answer by stanbon(57962)

Question 155151: The question is about multiplying and dividing real numbers.
4 1/2 divided by 1 1/2
I got +4 but i dont think it is right.
4 1/2 * 1 2/1 cross * and i got +4
Click here to see answer by Alan3354(31515)

Question 155273: List all the prime numbers which will divide exactly into 1155
Click here to see answer by Earlsdon(6294)

Question 155271: List all the prime numbers that will divide exactly into 1890
Click here to see answer by orca(409)

Question 155271: List all the prime numbers that will divide exactly into 1890
Click here to see answer by ankor@dixie-net.com(15746)

Question 156299: what times what = 222
Click here to see answer by Earlsdon(6294)

Question 156510: Find the number with the given prime factorization.
2 x 25 x 7 x 11=
Click here to see answer by stanbon(57962)

Question 113408: what are the factos of 100
Click here to see answer by Alan3354(31515)

Question 158490: What is the sum of all the prime numbers between 0 and 50?
Click here to see answer by Edwin McCravy(8999)

Question 158559: Find the greatest 8 digit number you can divide by 1, 2, 3, and 4 without a remainder. (explain how you figured this out).
Click here to see answer by scott8148(6628)

Question 158859: The book tells me to "find several numbers that have exactly three divisors and several others that each have exactly four divisors."
Click here to see answer by vleith(2825)

Question 159031: Fred has a shoebox of baseball cards. When he counted them by 2's, 3's, 4's, 5's, or 6's he had 1 left over. If he had fewer than 100 cards, how many did he have?
Click here to see answer by checkley77(12569)

Question 158982: what is the diagram to the prime factorization of 2018
Click here to see answer by checkley77(12569)

Question 159486: A number between 300 and 400. If it is divided by 2, the remainder is 1. If it is divided by 4,6, or 8, the remainder is 3. If it is devied by 10, the remainder is 5. If t divided by 3,5,7, or 9, the remainder is zero. What is the number?
Click here to see answer by ankor@dixie-net.com(15746)

Question 159967: need the answer to 1-16
Click here to see answer by checkley77(12569)

Question 160234: give the standard prime fctorization of 7x^3-56x^2+112x over the reals .
Click here to see answer by vleith(2825)

Question 160239: What are the common factors of 28 and 32
Click here to see answer by midwood_trail(310)

Question 161622: what numbers is 2235, 3864, 450, 72424, 6168, 2421, 432, and 8304 divisible by???? answer back ASAP!! PLEASE
THANKS SOOO MUCHH,
SINCERILY
ariella melamed :)
Click here to see answer by checkley77(12569)

Question 162241: The product of two prime numbers is 221. Their GCF is 1 and their LCM is 221. What are the two prime numbers?
Click here to see answer by Edwin McCravy(8999)

Question 162957: 2.) Give the prime factorization for each integer.
336
Click here to see answer by jim_thompson5910(28705)

Question 163303: If a number is the square of a prime number, it has exactly 3 divisors. Give an example and explain.
Click here to see answer by jim_thompson5910(28705)

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