Q: What are the prime factors of the number 322,331,100?

 A: 2, 3, 5, 7, 13, 11807

Why are those the prime factors of the number 322,331,100?

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 322,331,100

322,331,100
Factor Arrows
2161,165,550
Factor Arrows
280,582,775
Factor Arrows
326,860,925
Factor Arrows
55,372,185
Factor Arrows
51,074,437
Factor Arrows
7153,491
Factor Arrows
1311,807

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, 7, 13, 11807

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 5 x 7 x 13 x 11,807 = 322,331,100

This can also be written as 22 x 31 x 52 x 71 x 131 x 11,8071 = 322,331,100

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


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