Q: What are the prime factors of the number 205,004,320?

 A: 2, 5, 157, 8161

Why are those the prime factors of the number 205,004,320?

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 205,004,320

205,004,320
Factor Arrows
2102,502,160
Factor Arrows
251,251,080
Factor Arrows
225,625,540
Factor Arrows
212,812,770
Factor Arrows
26,406,385
Factor Arrows
51,281,277
Factor Arrows
1578,161

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, 157, 8161

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 157 x 8,161 = 205,004,320

This can also be written as 25 x 51 x 1571 x 8,1611 = 205,004,320

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 205,004,320:


Ask a Question