Solutions by everydaycalculation.com

The GCF of 30 and 1400 is 10.

- Find the prime factorization of 30

30 = 2 × 3 × 5 - Find the prime factorization of 1400

1400 = 2 × 2 × 2 × 5 × 5 × 7 - To find the GCF, multiply all the prime factors common to both numbers:

Therefore, GCF = 2 × 5 - GCF =
**10**

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Find hcf of: 60 & 2800 15 & 700 90 & 4200 150 & 7000 6 & 280 210 & 9800 60 & 1400 30 & 2800 90 & 1400 30 & 4200 150 & 1400 30 & 7000 210 & 1400 30 & 9800

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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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