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Algebra: Divisibility and Prime Numbers

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Question 53150: Can someone help me on this problem?
I need to find the GCFIGreatest Common Factor) of 6, 18, and 30.
Thanks,
Ashley
Click here to see answer by morrislsmith(4)

Question 53151: Can someone help me on this problem?
I need to find the GCF for 4, 14, and 18. (Greatest Common Factor)
Thanks,
Ashley
Click here to see answer by morrislsmith(4)

Question 53140: Can someone help me on this problem?
I need to list all the factors of 45
Thanks,
Sher
Click here to see answer by rchill(405)

Question 53236: Find least no in which when divide by 5,7,9 then it leaves remainder 1,2,3 respectively. What is logic for solving this problem.
Click here to see answer by venugopalramana(3286)

Question 53256: Can someone help me with this problem?
I need to divide:
10s^3t^5 * 3s^3t^5/3s^3t^3
Thanks,
Lyn
Click here to see answer by funmath(2873)

Question 53218: Can someone help me on this problem?
I need to divide:
m^8 n^6/m^4 n^2
Thanks,
Lyn
Click here to see answer by ankor@dixie-net.com(6691)

Question 53219: Can someone help me on this problem?
I need to divide:
10s^3 t^5 * 3s^3 t^5/3s^3 t^3
Thanks,
Lyn
Click here to see answer by ankor@dixie-net.com(6691)

Question 53800: It's been a while! I have 2 known numbers and an average of 3 numbers. The numbers I know are 72 and 73 and the average including the 3rd number is 72.9. Here is my formula and I'm trying to solve for x:
(72+73+x)/3=72.9.
Click here to see answer by funmath(2873)

Question 53835: what are the factors of 875
Click here to see answer by AnlytcPhil(958)

Question 53835: what are the factors of 875
Click here to see answer by fanks(6)

Question 53490: I need help with this problem. Can someone write out the steps if possible. Thank you.
Perform the division:
((((x^5-3x^4+x^2+6))))))
((((x^3-2x^2+x-1))))))))
Click here to see answer by stanbon(26259)

Question 54198: is 1 a prime number?

Click here to see answer by Nate(3495)

Question 54308: Hello!
I have problems proving that if then
Can someone help me on this, please?
(I hope this is the correct topic category.)
Click here to see answer by aaaaaaaa(138)

Question 53044: The LCM and GCF of two different integers are related as follows:
a. There is no relationship between the LCM and GCF for two different integers
b. The LCM is always less than the GCF for two different integers
c. The LCM is sometimes less than the GCF for two different integers
d. The GCF is always less than the LCM for two different integers

Click here to see answer by venugopalramana(3286)

Question 54937:
Click here to see answer by funmath(2873)

Question 55192: Factoring Intergers
factor 140 in to the product of primes.
find the GCF for 40, 160, & 72.
Round to the nearest tenth.
Click here to see answer by funmath(2873)

Question 55696: 125x^3+8y^3
Click here to see answer by tutorcecilia(2042)

Question 56046: what are prime factors of
1230186684530117755130494958384962720772853569595334792197322452151726400507263657518745202199786469389956474942774063845925192557326303453731548268507917026122142913461670429214311602221240479274737794080665351419597459856902143413
Click here to see answer by aaaaaaaa(138)

Question 56322: Find the GCF for 25, 35, and 45
Click here to see answer by funmath(2873)

Question 56533: i have to show whether the following numbers are divisible by 2,3,or 5...The work needs to be shown. the numbers are 925, 165,351, and 1,495
Click here to see answer by funmath(2873)

Question 20789: I need to know the positive factors for the following:: 32,37,53,108, and 157. i have 1 and the number but i don't know how to get the other ones! Please help me!
Click here to see answer by BGluvsmath(64)

Question 20785: I am trying to find the positive factors for 32,37,53,108, and 157 I have no idea what they are? all i know is 1 and the number . . . . could you help me?
Click here to see answer by BGluvsmath(64)

Question 16897: the prime factorization of the following 144, 385, 90
Click here to see answer by BGluvsmath(64)

Question 16815: what is the GCF for 240 and 285
Click here to see answer by BGluvsmath(64)

Question 56801: 15y-30. Solve by find the larger common factor.
Click here to see answer by funmath(2873)

Question 57089: What is the largest known prime number
Click here to see answer by stanbon(26259)

Question 57181: Someone please clarify:
FIND THE PRIME FACTORIZATION OF 40?
I CAME UP WITH 2*2*2*5 IS THAT RIGHT? THANKS
Click here to see answer by stanbon(26259)

Question 57237: which of the following statement is true:
1. a number divisible by 6 is also divisible by 3
2. a number divisible by 3 is also divisible by 9
3. a number divisible by 5 is also divisible by 10
4. a number divisible by 3 is also divisible by 6
Click here to see answer by funmath(2873)

Question 53040: The Least Common Multiple of 12 and 18 is a divisor of both numbers.
a. True
b. False

Click here to see answer by BGluvsmath(64)

Question 53042: The Greatest Common Factor of two different integers must always be smaller than at least one of those numbers.
a. True
b. False

Click here to see answer by BGluvsmath(64)

Question 45677: Can someone help me with this problem?
I need to find the prime factorization of this number:
90
Thanks,
sher
Click here to see answer by BGluvsmath(64)

Question 57772: Please Help-I'm not sure how to factor this:
4(a-b)^2+7(a+b)
Click here to see answer by oberobic(93)

Question 59052This question is from textbook
: What is a five-digit number divisible by both 2 and 5?
What is a three digit number divisible by 2 and not 4?
What is a three-digit number not divisible by 2, 3, or 5?This question is from textbook

Click here to see answer by funmath(2873)

Question 60082This question is from textbook Algebra 1
: I need help on factoring this monomial: This question is from textbook Algebra 1

Click here to see answer by funmath(2873)

Question 60151: Can someone help me?
I need to find the prime factorization of 140.
Thanks,
Ashley
Click here to see answer by funmath(2873)

Question 60150: Does anyone know this?
Is 31 a composit number
(A) true
( B) False
Thanks,
Ashley
Click here to see answer by funmath(2873)

Question 60202: Can someone help me on this problem?
The sum of two numbers is 33. Their difference is 11. What are the two numbers?
Thanks,
Ashley
Click here to see answer by checkley71(8405)

Question 61227This question is from textbook Beginning Algebra

: 6x-42+xy-7yThis question is from textbook Beginning Algebra

Click here to see answer by funmath(2873)

Question 61880: find the LCM for 4 and 20
Click here to see answer by funmath(2873)

Question 61878: find the GCF for 14 and 21
Click here to see answer by funmath(2873)

Question 61838: 21a^3b^2c^4, 28a^2b^3c^6, 32ab^4c^5 I need help with this problem
Click here to see answer by funmath(2873)

Question 61789This question is from textbook Pre-Algebra
: Use the clues to find the missing numbers.(Clue) The greatest common factor (GCF) of two numbers is 6.This question is from textbook Pre-Algebra

Click here to see answer by funmath(2873)

Question 62072: Please help me solve this homework problem. The least common multiple of 2 numbers is 3780, and the greatest common factor is 18. Given that one of the numbers is 180, what is the other number?
I started out by 3780/180= 21. But 18 is not a factor of 21? What am I doing wrong?
Thanks!
Laura
Click here to see answer by joyofmath(189)

Question 62387: Is 44 or 56 a prime number?
Click here to see answer by funmath(2873)

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