Q: What are the prime factors of the number 115,415,625?

 A: 3, 5, 13, 947

Why are those the prime factors of the number 115,415,625?

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 115,415,625

115,415,625
Factor Arrows
338,471,875
Factor Arrows
57,694,375
Factor Arrows
51,538,875
Factor Arrows
5307,775
Factor Arrows
561,555
Factor Arrows
512,311
Factor Arrows
13947

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, 947

We can check our work by multiplying all of the prime factors together: 3 x 5 x 5 x 5 x 5 x 5 x 13 x 947 = 115,415,625

This can also be written as 31 x 55 x 131 x 9471 = 115,415,625

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 115,415,625:


Ask a Question