Number Theory 6th Grade

Question 1

What is the GCF of 25 & 26

Accepted Answer

1

Question 2

What is the GCF of 10, 12 & 16?

Accepted Answer

2

Question 3

What are the factors for 24?

Accepted Answer

1,2,3,4,6,8,12,24

Question 4

Hamburger come in packs of 10 and buns in 12. How many packs of each to equal each other?

Accepted Answer

60

Question 5

What is the LCM of 15 & 25?

Accepted Answer

75

Question 6

What is the GCF of 10, 15 & 45?

Accepted Answer

5

Question 7

Is 405 divisible by 3?

Accepted Answer

yes, yes

Question 8

What is the prime factorization of 90?

Accepted Answer

2 x 32

Question 9

What is the LCM of 6 & 14?

Accepted Answer

42

Question 10

What is the GCF of 18, 42, & 60?

Accepted Answer

6

Question 11

Is 628 divisible by 10?

Accepted Answer

no, no

Question 12

What is the GCF of 40 & 140?

Accepted Answer

20

Question 13

What is the LCM of 15 & 18?

Accepted Answer

90

Question 14

What is the LCM of 4, 10 & 18?

Accepted Answer

180

Question 15

I am thinking of a # that is divisible by 18 & 27. What is the smallest # they can go into?

Accepted Answer

54

Question 16

What is the LCM of 9 & 24?

Accepted Answer

72

Question 17

What are the factors for 40?

Accepted Answer

1,2,4,5,8,10,20,40

Question 18

What is the prime factorization of 36?

Accepted Answer

22 x 32

Question 19

What is the GCF of 24 & 36?

Accepted Answer

12

Questions 19