Q: What are the prime factors of the number 155,980,825?

 A: 5, 7, 11, 13, 23, 271

Why are those the prime factors of the number 155,980,825?

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 155,980,825

155,980,825
Factor Arrows
531,196,165
Factor Arrows
56,239,233
Factor Arrows
7891,319
Factor Arrows
1181,029
Factor Arrows
136,233
Factor Arrows
23271

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:

5, 7, 11, 13, 23, 271

We can check our work by multiplying all of the prime factors together: 5 x 5 x 7 x 11 x 13 x 23 x 271 = 155,980,825

This can also be written as 52 x 71 x 111 x 131 x 231 x 2711 = 155,980,825

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 155,980,825:


Ask a Question