Given the sum 100=64+36 , rewrite 64+36 using their GCF and multiplication.
To rewrite 64 + 36 using their greatest common factor (GCF) and multiplication, we need to find the GCF of 64 and 36.
The prime factorization of 64 is 2^6, and the prime factorization of 36 is 2^2 * 3^2.
To find the GCF, we take the lowest exponent of each prime factor that appears in both numbers. In this case, the lowest exponent of 2 is 2, and there are no common factors of 3. Therefore, the GCF of 64 and 36 is 2^2 = 4.
So, we can rewrite 64 + 36 as 4 * (16 + 9).
Therefore, 64 + 36 = 4 * (16 + 9).