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Which of the following sets of numbers lists all factors of 40?
prime
2,5,7
1,2,4,5,8,10,20,40
2
12
3,5
15
1,2,3,6,9,18
What factors are prime in the number 45?
prime
2,5,7
1,2,4,5,8,10,20,40
2
12
3,5
15
1,2,3,6,9,18
What is the GCF of 15?
prime
2,5,7
1,2,4,5,8,10,20,40
2
12
3,5
15
1,2,3,6,9,18
Prime factors of the number 70 are:
prime
2,5,7
1,2,4,5,8,10,20,40
2
12
3,5
15
1,2,3,6,9,18
What is the LCF of 20?
prime
2,5,7
1,2,4,5,8,10,20,40
2
12
3,5
15
1,2,3,6,9,18
Which set lists all the factors of 18?
prime
2,5,7
1,2,4,5,8,10,20,40
2
12
3,5
15
1,2,3,6,9,18
Is the number 5 a prime or composite number?
prime
2,5,7
1,2,4,5,8,10,20,40
2
12
3,5
15
1,2,3,6,9,18
What is the GCF of 3 and 12?
prime
2,5,7
1,2,4,5,8,10,20,40
2
12
3,5
15
1,2,3,6,9,18
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