Q: What are the prime factors of the number 778,532?

 A: 2, 17, 107

Why are those the prime factors of the number 778,532?

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 778,532

778,532
Factor Arrows
2389,266
Factor Arrows
2194,633
Factor Arrows
1711,449
Factor Arrows
107107

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, 17, 107

We can check our work by multiplying all of the prime factors together: 2 x 2 x 17 x 107 x 107 = 778,532

This can also be written as 22 x 171 x 1072 = 778,532

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


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