Q: What are the prime factors of the number 778,908?

 A: 2, 3, 13, 4993

Why are those the prime factors of the number 778,908?

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 778,908

778,908
Factor Arrows
2389,454
Factor Arrows
2194,727
Factor Arrows
364,909
Factor Arrows
134,993

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, 13, 4993

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 13 x 4,993 = 778,908

This can also be written as 22 x 31 x 131 x 4,9931 = 778,908

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


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