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What is the GCF of 5 and 17?

The gcf of 5 and 17 is 1.

Steps to find GCF

  1. Find the prime factorization of 5
    5 = 5
  2. Find the prime factorization of 17
    17 = 17
  3. To find the gcf, multiply all the prime factors common to both numbers:

    Therefore, GCF = 1

The greatest common factor (gcf) is also known as greatest common divisor (gcd) or highest common factor (hcf).

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