Q: What are the prime factors of the number 451,406,406?

 A: 2, 3, 11, 17, 53, 7591

Why are those the prime factors of the number 451,406,406?

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 451,406,406

451,406,406
Factor Arrows
2225,703,203
Factor Arrows
375,234,401
Factor Arrows
116,839,491
Factor Arrows
17402,323
Factor Arrows
537,591

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, 3, 11, 17, 53, 7591

We can check our work by multiplying all of the prime factors together: 2 x 3 x 11 x 17 x 53 x 7,591 = 451,406,406

This can also be written as 21 x 31 x 111 x 171 x 531 x 7,5911 = 451,406,406

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


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