Solutions by » GCF of two numbers

What is the GCF of 2089 and 420?

The GCF of 2089 and 420 is 1.

Steps to find GCF

  1. Find the prime factorization of 2089
    2089 = 2089
  2. Find the prime factorization of 420
    420 = 2 × 2 × 3 × 5 × 7
  3. To find the GCF, multiply all the prime factors common to both numbers:

    Therefore, GCF = 1

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