Q: What are the prime factors of the number 718,332,846?

 A: 2, 3, 7, 11, 389, 571

Why are those the prime factors of the number 718,332,846?

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 718,332,846

718,332,846
Factor Arrows
2359,166,423
Factor Arrows
3119,722,141
Factor Arrows
717,103,163
Factor Arrows
72,443,309
Factor Arrows
11222,119
Factor Arrows
389571

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, 7, 11, 389, 571

We can check our work by multiplying all of the prime factors together: 2 x 3 x 7 x 7 x 11 x 389 x 571 = 718,332,846

This can also be written as 21 x 31 x 72 x 111 x 3891 x 5711 = 718,332,846

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


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