Q: What are the prime factors of the number 451,245,508?

 A: 2, 7, 41, 233, 241

Why are those the prime factors of the number 451,245,508?

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 451,245,508

451,245,508
Factor Arrows
2225,622,754
Factor Arrows
2112,811,377
Factor Arrows
716,115,911
Factor Arrows
72,302,273
Factor Arrows
4156,153
Factor Arrows
233241

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, 7, 41, 233, 241

We can check our work by multiplying all of the prime factors together: 2 x 2 x 7 x 7 x 41 x 233 x 241 = 451,245,508

This can also be written as 22 x 72 x 411 x 2331 x 2411 = 451,245,508

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


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