Solutions by » GCF of two numbers

What is the GCF of 1009 and 83?

The GCF of 1009 and 83 is 1.

Steps to find GCF

  1. Find the prime factorization of 1009
    1009 = 1009
  2. Find the prime factorization of 83
    83 = 83
  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).