Q: What are the prime factors of the number 342,023,340?

 A: 2, 3, 5, 17, 23, 61, 239

Why are those the prime factors of the number 342,023,340?

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 342,023,340

342,023,340
Factor Arrows
2171,011,670
Factor Arrows
285,505,835
Factor Arrows
328,501,945
Factor Arrows
55,700,389
Factor Arrows
17335,317
Factor Arrows
2314,579
Factor Arrows
61239

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, 17, 23, 61, 239

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 17 x 23 x 61 x 239 = 342,023,340

This can also be written as 22 x 31 x 51 x 171 x 231 x 611 x 2391 = 342,023,340

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


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