Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » GCF of two numbers

What is the GCF of 630 and 198?

The GCF of 630 and 198 is 18.

Steps to find GCF

  1. Find the prime factorization of 630
    630 = 2 × 3 × 3 × 5 × 7
  2. Find the prime factorization of 198
    198 = 2 × 3 × 3 × 11
  3. To find the GCF, multiply all the prime factors common to both numbers:

    Therefore, GCF = 2 × 3 × 3
  4. GCF = 18

MathStep (Works offline)

Download our mobile app and learn how to find GCF of upto four numbers in your own time:
Android and iPhone/ iPad

Related

Find HCF of:

GCF Calculator

Enter two numbers separate by comma. To find GCF of more than two numbers, click here.

The greatest common factor (GCF) is also known as greatest common divisor (GCD) or highest common factor (HCF).

© everydaycalculation.com