Q: What are the prime factors of the number 72,175,656?

 A: 2, 3, 7, 23, 18679

Why are those the prime factors of the number 72,175,656?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 72,175,656

72,175,656
Factor Arrows
236,087,828
Factor Arrows
218,043,914
Factor Arrows
29,021,957
Factor Arrows
33,007,319
Factor Arrows
7429,617
Factor Arrows
2318,679

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 3, 7, 23, 18679

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 7 x 23 x 18,679 = 72,175,656

This can also be written as 23 x 31 x 71 x 231 x 18,6791 = 72,175,656

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


More Examples

Here are some more numbers to try:

Try the factor calculator

Explore more about the number 72,175,656:


Ask a Question