Q: What are the prime factors of the number 245,413,399?

 A: 7, 11, 29, 109903

Why are those the prime factors of the number 245,413,399?

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 245,413,399

245,413,399
Factor Arrows
735,059,057
Factor Arrows
113,187,187
Factor Arrows
29109,903

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:

7, 11, 29, 109903

We can check our work by multiplying all of the prime factors together: 7 x 11 x 29 x 109,903 = 245,413,399

This can also be written as 71 x 111 x 291 x 109,9031 = 245,413,399

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


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