Q: What are the prime factors of the number 451,540,215?

 A: 3, 5, 7, 251, 5711

Why are those the prime factors of the number 451,540,215?

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 451,540,215

451,540,215
Factor Arrows
3150,513,405
Factor Arrows
350,171,135
Factor Arrows
510,034,227
Factor Arrows
71,433,461
Factor Arrows
2515,711

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, 251, 5711

We can check our work by multiplying all of the prime factors together: 3 x 3 x 5 x 7 x 251 x 5,711 = 451,540,215

This can also be written as 32 x 51 x 71 x 2511 x 5,7111 = 451,540,215

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 451,540,215:


Ask a Question