Q: What are the prime factors of the number 30,116,856?

 A: 2, 3, 7, 11, 43, 379

Why are those the prime factors of the number 30,116,856?

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 30,116,856

30,116,856
Factor Arrows
215,058,428
Factor Arrows
27,529,214
Factor Arrows
23,764,607
Factor Arrows
31,254,869
Factor Arrows
7179,267
Factor Arrows
1116,297
Factor Arrows
43379

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, 3, 7, 11, 43, 379

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 7 x 11 x 43 x 379 = 30,116,856

This can also be written as 23 x 31 x 71 x 111 x 431 x 3791 = 30,116,856

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 30,116,856:


Ask a Question