Answer
True
Work Step by Step
The prime factored form of 36 is:
$36=2\times2\times3\times3$
The prime factored form of 64 is:
$64=2\times2\times2\times2\times2\times2$
Since two 2s are common to both, the greatest common factor of 36 and 64 is $2\times2=4$.
Therefore, the question statement is true.