Q: What are the prime factors of the number 338,620,122?

 A: 2, 3, 23, 103, 2647

Why are those the prime factors of the number 338,620,122?

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 338,620,122

338,620,122
Factor Arrows
2169,310,061
Factor Arrows
356,436,687
Factor Arrows
318,812,229
Factor Arrows
36,270,743
Factor Arrows
23272,641
Factor Arrows
1032,647

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, 23, 103, 2647

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 23 x 103 x 2,647 = 338,620,122

This can also be written as 21 x 33 x 231 x 1031 x 2,6471 = 338,620,122

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


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