Q: What are the prime factors of the number 323,130,432?

 A: 2, 3, 197, 8543

Why are those the prime factors of the number 323,130,432?

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 323,130,432

323,130,432
Factor Arrows
2161,565,216
Factor Arrows
280,782,608
Factor Arrows
240,391,304
Factor Arrows
220,195,652
Factor Arrows
210,097,826
Factor Arrows
25,048,913
Factor Arrows
31,682,971
Factor Arrows
1978,543

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, 197, 8543

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 197 x 8,543 = 323,130,432

This can also be written as 26 x 31 x 1971 x 8,5431 = 323,130,432

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


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