Q: What are the prime factors of the number 621,534,160?

 A: 2, 5, 13, 353, 1693

Why are those the prime factors of the number 621,534,160?

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 621,534,160

621,534,160
Factor Arrows
2310,767,080
Factor Arrows
2155,383,540
Factor Arrows
277,691,770
Factor Arrows
238,845,885
Factor Arrows
57,769,177
Factor Arrows
13597,629
Factor Arrows
3531,693

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, 5, 13, 353, 1693

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 13 x 353 x 1,693 = 621,534,160

This can also be written as 24 x 51 x 131 x 3531 x 1,6931 = 621,534,160

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 621,534,160:


Ask a Question