Q: What are the prime factors of the number 346,664,640?

 A: 2, 3, 5, 7, 79, 653

Why are those the prime factors of the number 346,664,640?

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 346,664,640

346,664,640
Factor Arrows
2173,332,320
Factor Arrows
286,666,160
Factor Arrows
243,333,080
Factor Arrows
221,666,540
Factor Arrows
210,833,270
Factor Arrows
25,416,635
Factor Arrows
31,805,545
Factor Arrows
5361,109
Factor Arrows
751,587
Factor Arrows
79653

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, 5, 7, 79, 653

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 3 x 5 x 7 x 79 x 653 = 346,664,640

This can also be written as 26 x 31 x 51 x 71 x 791 x 6531 = 346,664,640

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 346,664,640:


Ask a Question