Question

Select the GCF of these numbers. 2^5 · 5· 11 and 2^3· 5^2 · 7

Answer 1

To find the GCF of 2^5·5·11 and 2^3·5^2·7, we first prime factorize each number:

2^5·5·11 = 2^5 x 5 x 11

2^3·5^2·7 = 2^3 x 5^2 x 7

Next, we look for the highest power of each prime factor that they both have in common:

2^3 is the highest power of 2 that both numbers have.

5^2 is the highest power of 5 that both numbers have.

So, the GCF of 2^5·5·11 and 2^3·5^2·7 is 2^3 x 5^2 = 180.

Explanation: