Solutions by everydaycalculation.com

## What is the GCF of 128 and 4900?

The GCF of 128 and 4900 is 4.

#### Steps to find GCF

1. Find the prime factorization of 128
128 = 2 × 2 × 2 × 2 × 2 × 2 × 2
2. Find the prime factorization of 4900
4900 = 2 × 2 × 5 × 5 × 7 × 7
3. To find the GCF, multiply all the prime factors common to both numbers:

Therefore, GCF = 2 × 2
4. GCF = 4

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