Solutions by everydaycalculation.com

The GCF of 2450 and 3920 is 490.

- Find the prime factorization of 2450

2450 = 2 × 5 × 5 × 7 × 7 - Find the prime factorization of 3920

3920 = 2 × 2 × 2 × 2 × 5 × 7 × 7 - To find the GCF, multiply all the prime factors common to both numbers:

Therefore, GCF = 2 × 5 × 7 × 7 - GCF =
**490**

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Find hcf of: 4900 & 7840 1225 & 1960 490 & 784 350 & 560 4900 & 3920 2450 & 7840 7350 & 3920

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The greatest common factor (GCF) is also known as greatest common divisor (GCD) or highest common factor (HCF).

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