Q: What are the prime factors of the number 321,223,014?

 A: 2, 3, 7, 23, 199, 557

Why are those the prime factors of the number 321,223,014?

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 321,223,014

321,223,014
Factor Arrows
2160,611,507
Factor Arrows
353,537,169
Factor Arrows
317,845,723
Factor Arrows
72,549,389
Factor Arrows
23110,843
Factor Arrows
199557

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, 7, 23, 199, 557

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 7 x 23 x 199 x 557 = 321,223,014

This can also be written as 21 x 32 x 71 x 231 x 1991 x 5571 = 321,223,014

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


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