Q: What are the prime factors of the number 974,144?

 A: 2, 31, 491

Why are those the prime factors of the number 974,144?

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 974,144

974,144
Factor Arrows
2487,072
Factor Arrows
2243,536
Factor Arrows
2121,768
Factor Arrows
260,884
Factor Arrows
230,442
Factor Arrows
215,221
Factor Arrows
31491

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, 31, 491

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 31 x 491 = 974,144

This can also be written as 26 x 311 x 4911 = 974,144

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 974,144:


Ask a Question