Solutions by » GCF of two numbers

What is the GCF of 359 and 1509?

The GCF of 359 and 1509 is 1.

Steps to find GCF

  1. Find the prime factorization of 359
    359 = 359
  2. Find the prime factorization of 1509
    1509 = 3 × 503
  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).