Q: What are the prime factors of the number 30,457,056?

 A: 2, 3, 7, 61, 743

Why are those the prime factors of the number 30,457,056?

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 30,457,056

30,457,056
Factor Arrows
215,228,528
Factor Arrows
27,614,264
Factor Arrows
23,807,132
Factor Arrows
21,903,566
Factor Arrows
2951,783
Factor Arrows
3317,261
Factor Arrows
745,323
Factor Arrows
61743

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, 61, 743

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 7 x 61 x 743 = 30,457,056

This can also be written as 25 x 31 x 71 x 611 x 7431 = 30,457,056

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 30,457,056:


Ask a Question