Q: What are the prime factors of the number 314,257,545?

 A: 3, 5, 7, 43, 23201

Why are those the prime factors of the number 314,257,545?

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 314,257,545

314,257,545
Factor Arrows
3104,752,515
Factor Arrows
334,917,505
Factor Arrows
56,983,501
Factor Arrows
7997,643
Factor Arrows
4323,201

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:

3, 5, 7, 43, 23201

We can check our work by multiplying all of the prime factors together: 3 x 3 x 5 x 7 x 43 x 23,201 = 314,257,545

This can also be written as 32 x 51 x 71 x 431 x 23,2011 = 314,257,545

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 314,257,545:


Ask a Question