Q: What are the prime factors of the number 314,323,100?

 A: 2, 5, 7, 13, 2657

Why are those the prime factors of the number 314,323,100?

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 314,323,100

314,323,100
Factor Arrows
2157,161,550
Factor Arrows
278,580,775
Factor Arrows
515,716,155
Factor Arrows
53,143,231
Factor Arrows
7449,033
Factor Arrows
1334,541
Factor Arrows
132,657

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, 7, 13, 2657

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 5 x 7 x 13 x 13 x 2,657 = 314,323,100

This can also be written as 22 x 52 x 71 x 132 x 2,6571 = 314,323,100

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


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