Q: What are the prime factors of the number 304,361,640?

 A: 2, 3, 5, 11, 151, 509

Why are those the prime factors of the number 304,361,640?

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 304,361,640

304,361,640
Factor Arrows
2152,180,820
Factor Arrows
276,090,410
Factor Arrows
238,045,205
Factor Arrows
312,681,735
Factor Arrows
34,227,245
Factor Arrows
5845,449
Factor Arrows
1176,859
Factor Arrows
151509

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, 5, 11, 151, 509

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 5 x 11 x 151 x 509 = 304,361,640

This can also be written as 23 x 32 x 51 x 111 x 1511 x 5091 = 304,361,640

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 304,361,640:


Ask a Question