Q: What are the prime factors of the number 977,781?

 A: 3, 7, 101, 461

Why are those the prime factors of the number 977,781?

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 977,781

977,781
Factor Arrows
3325,927
Factor Arrows
746,561
Factor Arrows
101461

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, 7, 101, 461

We can check our work by multiplying all of the prime factors together: 3 x 7 x 101 x 461 = 977,781

This can also be written as 31 x 71 x 1011 x 4611 = 977,781

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 977,781:


Ask a Question