Question

what is the greatest common factor of 40 and 48?

Explanation:

Step1: Prime - factorize 40

$40 = 2\times2\times2\times5$

Step2: Prime - factorize 48

$48 = 2\times2\times2\times2\times3$

Step3: Identify common prime factors

The common prime factors are three 2s.

Step4: Calculate GCF

$GCF(40,48)=2\times2\times2 = 8$

Answer:

8