Q: What are the prime factors of the number 704,653,570?

 A: 2, 5, 17, 19, 269, 811

Why are those the prime factors of the number 704,653,570?

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 704,653,570

704,653,570
Factor Arrows
2352,326,785
Factor Arrows
570,465,357
Factor Arrows
174,145,021
Factor Arrows
19218,159
Factor Arrows
269811

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, 5, 17, 19, 269, 811

We can check our work by multiplying all of the prime factors together: 2 x 5 x 17 x 19 x 269 x 811 = 704,653,570

This can also be written as 21 x 51 x 171 x 191 x 2691 x 8111 = 704,653,570

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


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