Q: What are the prime factors of the number 355,566,320?

 A: 2, 5, 67, 66337

Why are those the prime factors of the number 355,566,320?

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 355,566,320

355,566,320
Factor Arrows
2177,783,160
Factor Arrows
288,891,580
Factor Arrows
244,445,790
Factor Arrows
222,222,895
Factor Arrows
54,444,579
Factor Arrows
6766,337

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, 67, 66337

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 67 x 66,337 = 355,566,320

This can also be written as 24 x 51 x 671 x 66,3371 = 355,566,320

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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