Q: What are the prime factors of the number 331,858,839?

 A: 3, 13, 67, 89, 1427

Why are those the prime factors of the number 331,858,839?

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 331,858,839

331,858,839
Factor Arrows
3110,619,613
Factor Arrows
138,509,201
Factor Arrows
67127,003
Factor Arrows
891,427

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:

3, 13, 67, 89, 1427

We can check our work by multiplying all of the prime factors together: 3 x 13 x 67 x 89 x 1,427 = 331,858,839

This can also be written as 31 x 131 x 671 x 891 x 1,4271 = 331,858,839

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


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