Solutions by » GCF of two numbers

What is the GCF of 1574 and 56?

The GCF of 1574 and 56 is 2.

Steps to find GCF

  1. Find the prime factorization of 1574
    1574 = 2 × 787
  2. Find the prime factorization of 56
    56 = 2 × 2 × 2 × 7
  3. To find the GCF, multiply all the prime factors common to both numbers:

    Therefore, GCF = 2

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