Q: What are the prime factors of the number 322,210,320?

 A: 2, 3, 5, 53, 73, 347

Why are those the prime factors of the number 322,210,320?

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 322,210,320

322,210,320
Factor Arrows
2161,105,160
Factor Arrows
280,552,580
Factor Arrows
240,276,290
Factor Arrows
220,138,145
Factor Arrows
36,712,715
Factor Arrows
51,342,543
Factor Arrows
5325,331
Factor Arrows
73347

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, 53, 73, 347

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 5 x 53 x 73 x 347 = 322,210,320

This can also be written as 24 x 31 x 51 x 531 x 731 x 3471 = 322,210,320

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


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