Q: What are the prime factors of the number 813,828,855?

 A: 3, 5, 7, 769, 10079

Why are those the prime factors of the number 813,828,855?

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 813,828,855

813,828,855
Factor Arrows
3271,276,285
Factor Arrows
554,255,257
Factor Arrows
77,750,751
Factor Arrows
76910,079

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, 7, 769, 10079

We can check our work by multiplying all of the prime factors together: 3 x 5 x 7 x 769 x 10,079 = 813,828,855

This can also be written as 31 x 51 x 71 x 7691 x 10,0791 = 813,828,855

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 813,828,855:


Ask a Question