Q: What are the prime factors of the number 457,828,074?

 A: 2, 3, 11, 151, 15313

Why are those the prime factors of the number 457,828,074?

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 457,828,074

457,828,074
Factor Arrows
2228,914,037
Factor Arrows
376,304,679
Factor Arrows
325,434,893
Factor Arrows
112,312,263
Factor Arrows
15115,313

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, 151, 15313

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 11 x 151 x 15,313 = 457,828,074

This can also be written as 21 x 32 x 111 x 1511 x 15,3131 = 457,828,074

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


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