Q: What are the prime factors of the number 457,463,781?

 A: 3, 419, 4493

Why are those the prime factors of the number 457,463,781?

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 457,463,781

457,463,781
Factor Arrows
3152,487,927
Factor Arrows
350,829,309
Factor Arrows
316,943,103
Factor Arrows
35,647,701
Factor Arrows
31,882,567
Factor Arrows
4194,493

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, 419, 4493

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 419 x 4,493 = 457,463,781

This can also be written as 35 x 4191 x 4,4931 = 457,463,781

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


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