Q: What are the prime factors of the number 310,405,431?

 A: 3, 7, 17, 59, 14737

Why are those the prime factors of the number 310,405,431?

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 310,405,431

310,405,431
Factor Arrows
3103,468,477
Factor Arrows
714,781,211
Factor Arrows
17869,483
Factor Arrows
5914,737

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, 7, 17, 59, 14737

We can check our work by multiplying all of the prime factors together: 3 x 7 x 17 x 59 x 14,737 = 310,405,431

This can also be written as 31 x 71 x 171 x 591 x 14,7371 = 310,405,431

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


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