Q: What are the prime factors of the number 413,140,312?

 A: 2, 13, 61, 65123

Why are those the prime factors of the number 413,140,312?

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 413,140,312

413,140,312
Factor Arrows
2206,570,156
Factor Arrows
2103,285,078
Factor Arrows
251,642,539
Factor Arrows
133,972,503
Factor Arrows
6165,123

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, 61, 65123

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 13 x 61 x 65,123 = 413,140,312

This can also be written as 23 x 131 x 611 x 65,1231 = 413,140,312

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


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