Solutions by » GCF of two numbers

What is the GCF of 35 and 4?

The gcf of 35 and 4 is 1.

Steps to find GCF

  1. Find the prime factorization of 35
    35 = 5 × 7
  2. Find the prime factorization of 4
    4 = 2 × 2
  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).