Q: What are the prime factors of the number 1,971,657?

 A: 3, 73, 3001

Why are those the prime factors of the number 1,971,657?

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 1,971,657

1,971,657
Factor Arrows
3657,219
Factor Arrows
3219,073
Factor Arrows
733,001

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, 73, 3001

We can check our work by multiplying all of the prime factors together: 3 x 3 x 73 x 3,001 = 1,971,657

This can also be written as 32 x 731 x 3,0011 = 1,971,657

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 1,971,657:


Ask a Question