Q: What are the prime factors of the number 151,355,840?

 A: 2, 5, 601, 787

Why are those the prime factors of the number 151,355,840?

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 151,355,840

151,355,840
Factor Arrows
275,677,920
Factor Arrows
237,838,960
Factor Arrows
218,919,480
Factor Arrows
29,459,740
Factor Arrows
24,729,870
Factor Arrows
22,364,935
Factor Arrows
5472,987
Factor Arrows
601787

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, 5, 601, 787

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 5 x 601 x 787 = 151,355,840

This can also be written as 26 x 51 x 6011 x 7871 = 151,355,840

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 151,355,840:


Ask a Question