Q: What are the prime factors of the number 310,142,400?

 A: 2, 3, 5, 64613

Why are those the prime factors of the number 310,142,400?

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 310,142,400

310,142,400
Factor Arrows
2155,071,200
Factor Arrows
277,535,600
Factor Arrows
238,767,800
Factor Arrows
219,383,900
Factor Arrows
29,691,950
Factor Arrows
24,845,975
Factor Arrows
31,615,325
Factor Arrows
5323,065
Factor Arrows
564,613

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, 5, 64613

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 3 x 5 x 5 x 64,613 = 310,142,400

This can also be written as 26 x 31 x 52 x 64,6131 = 310,142,400

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


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