Q: What are the prime factors of the number 124,457,385?

 A: 3, 5, 13, 61, 10463

Why are those the prime factors of the number 124,457,385?

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 124,457,385

124,457,385
Factor Arrows
341,485,795
Factor Arrows
58,297,159
Factor Arrows
13638,243
Factor Arrows
6110,463

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, 13, 61, 10463

We can check our work by multiplying all of the prime factors together: 3 x 5 x 13 x 61 x 10,463 = 124,457,385

This can also be written as 31 x 51 x 131 x 611 x 10,4631 = 124,457,385

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 124,457,385:


Ask a Question