24. Multiple Choice. For which pair is the greatest common factor 8?

A. 2 and 4 B. 7 and 15
C. 32 and 64 D. 56 and 72

I like d

A. 2 and 4

prime time?

To find which pair has the greatest common factor of 8, we can calculate the factor of each pair and see if it is divisible by 8.

A. The factors of 2 are 1 and 2, and the factors of 4 are 1, 2, and 4. Neither 2 nor 4 is divisible by 8.

B. The factors of 7 are 1 and 7, and the factors of 15 are 1, 3, 5, and 15. Neither 7 nor 15 is divisible by 8.

C. The factors of 32 are 1, 2, 4, 8, 16, and 32, and the factors of 64 are 1, 2, 4, 8, 16, 32, and 64. Both 32 and 64 are divisible by 8.

D. The factors of 56 are 1, 2, 4, 7, 8, 14, 28, and 56, and the factors of 72 are 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, and 72. Neither 56 nor 72 is divisible by 8.

Thus, the pair for which the greatest common factor is 8 is C. 32 and 64.