Q: What are the prime factors of the number 345,955,688?

 A: 2, 13, 137, 24281

Why are those the prime factors of the number 345,955,688?

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 345,955,688

345,955,688
Factor Arrows
2172,977,844
Factor Arrows
286,488,922
Factor Arrows
243,244,461
Factor Arrows
133,326,497
Factor Arrows
13724,281

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, 13, 137, 24281

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 13 x 137 x 24,281 = 345,955,688

This can also be written as 23 x 131 x 1371 x 24,2811 = 345,955,688

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


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