Q: What are the prime factors of the number 313,104,402?

 A: 2, 3, 13, 17, 31, 2539

Why are those the prime factors of the number 313,104,402?

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 313,104,402

313,104,402
Factor Arrows
2156,552,201
Factor Arrows
352,184,067
Factor Arrows
317,394,689
Factor Arrows
131,338,053
Factor Arrows
1778,709
Factor Arrows
312,539

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, 13, 17, 31, 2539

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 13 x 17 x 31 x 2,539 = 313,104,402

This can also be written as 21 x 32 x 131 x 171 x 311 x 2,5391 = 313,104,402

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


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