Q: What are the prime factors of the number 998,620?

 A: 2, 5, 7, 1019

Why are those the prime factors of the number 998,620?

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 998,620

998,620
Factor Arrows
2499,310
Factor Arrows
2249,655
Factor Arrows
549,931
Factor Arrows
77,133
Factor Arrows
71,019

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, 5, 7, 1019

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 7 x 7 x 1,019 = 998,620

This can also be written as 22 x 51 x 72 x 1,0191 = 998,620

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 998,620:


Ask a Question