Q: What are the prime factors of the number 401,736,348?

 A: 2, 3, 13, 31793

Why are those the prime factors of the number 401,736,348?

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 401,736,348

401,736,348
Factor Arrows
2200,868,174
Factor Arrows
2100,434,087
Factor Arrows
333,478,029
Factor Arrows
311,159,343
Factor Arrows
33,719,781
Factor Arrows
31,239,927
Factor Arrows
3413,309
Factor Arrows
1331,793

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, 13, 31793

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 3 x 3 x 3 x 13 x 31,793 = 401,736,348

This can also be written as 22 x 35 x 131 x 31,7931 = 401,736,348

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 401,736,348:


Ask a Question