Q: What are the prime factors of the number 310,331,120?

 A: 2, 5, 11, 32059

Why are those the prime factors of the number 310,331,120?

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 310,331,120

310,331,120
Factor Arrows
2155,165,560
Factor Arrows
277,582,780
Factor Arrows
238,791,390
Factor Arrows
219,395,695
Factor Arrows
53,879,139
Factor Arrows
11352,649
Factor Arrows
1132,059

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, 11, 32059

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 11 x 11 x 32,059 = 310,331,120

This can also be written as 24 x 51 x 112 x 32,0591 = 310,331,120

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


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