Solutions by » GCF of two numbers

What is the GCF of 16 and 43?

The GCF of 16 and 43 is 1.

Steps to find GCF

  1. Find the prime factorization of 16
    16 = 2 × 2 × 2 × 2
  2. Find the prime factorization of 43
    43 = 43
  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).