Menu Search
Jump to the content
X
X

Calculate the Greatest Common Factor or GCF of 391

Sponsors

The instructions to find the GCF of 391 are the next:

1. Decompose all numbers into prime factors

39117
2323
1

2. Write all numbers as the product of its prime factors

Prime factors of 391=17 . 23

3. Choose the common prime factors with the lowest exponent

Common prime factors: 17 , 23

Common prime factors with the lowest exponent: 171, 231

4. Calculate the Greatest Common Factor or GCF

Remember, to find the GCF of several numbers you must multiply the common prime factors with the lowest exponent.

GCF = 171. 231 = 391


Also calculates the:

↑ Back to top

↑ Back to top