Q: What are the prime factors of the number 308,302,488?

 A: 2, 3, 13, 23, 14321

Why are those the prime factors of the number 308,302,488?

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 308,302,488

308,302,488
Factor Arrows
2154,151,244
Factor Arrows
277,075,622
Factor Arrows
238,537,811
Factor Arrows
312,845,937
Factor Arrows
34,281,979
Factor Arrows
13329,383
Factor Arrows
2314,321

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, 13, 23, 14321

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 13 x 23 x 14,321 = 308,302,488

This can also be written as 23 x 32 x 131 x 231 x 14,3211 = 308,302,488

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


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