Q: What are the prime factors of the number 1,335,520?

 A: 2, 5, 17, 491

Why are those the prime factors of the number 1,335,520?

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 1,335,520

1,335,520
Factor Arrows
2667,760
Factor Arrows
2333,880
Factor Arrows
2166,940
Factor Arrows
283,470
Factor Arrows
241,735
Factor Arrows
58,347
Factor Arrows
17491

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, 17, 491

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 5 x 17 x 491 = 1,335,520

This can also be written as 25 x 51 x 171 x 4911 = 1,335,520

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 1,335,520:


Ask a Question