Q: What are the prime factors of the number 451,315,305?

 A: 3, 5, 7, 131, 10937

Why are those the prime factors of the number 451,315,305?

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 451,315,305

451,315,305
Factor Arrows
3150,438,435
Factor Arrows
350,146,145
Factor Arrows
510,029,229
Factor Arrows
71,432,747
Factor Arrows
13110,937

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:

3, 5, 7, 131, 10937

We can check our work by multiplying all of the prime factors together: 3 x 3 x 5 x 7 x 131 x 10,937 = 451,315,305

This can also be written as 32 x 51 x 71 x 1311 x 10,9371 = 451,315,305

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


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