Q: What are the prime factors of the number 323,213,312?

 A: 2, 97, 1627

Why are those the prime factors of the number 323,213,312?

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 323,213,312

323,213,312
Factor Arrows
2161,606,656
Factor Arrows
280,803,328
Factor Arrows
240,401,664
Factor Arrows
220,200,832
Factor Arrows
210,100,416
Factor Arrows
25,050,208
Factor Arrows
22,525,104
Factor Arrows
21,262,552
Factor Arrows
2631,276
Factor Arrows
2315,638
Factor Arrows
2157,819
Factor Arrows
971,627

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, 97, 1627

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 2 x 2 x 2 x 2 x 2 x 97 x 1,627 = 323,213,312

This can also be written as 211 x 971 x 1,6271 = 323,213,312

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


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