Q: What are the prime factors of the number 556,720,164?

 A: 2, 3, 7, 11, 13, 2207

Why are those the prime factors of the number 556,720,164?

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 556,720,164

556,720,164
Factor Arrows
2278,360,082
Factor Arrows
2139,180,041
Factor Arrows
346,393,347
Factor Arrows
315,464,449
Factor Arrows
72,209,207
Factor Arrows
7315,601
Factor Arrows
1128,691
Factor Arrows
132,207

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, 3, 7, 11, 13, 2207

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 7 x 7 x 11 x 13 x 2,207 = 556,720,164

This can also be written as 22 x 32 x 72 x 111 x 131 x 2,2071 = 556,720,164

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 556,720,164:


Ask a Question