Q: What are the prime factors of the number 778,536?

 A: 2, 3, 11, 983

Why are those the prime factors of the number 778,536?

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 778,536

778,536
Factor Arrows
2389,268
Factor Arrows
2194,634
Factor Arrows
297,317
Factor Arrows
332,439
Factor Arrows
310,813
Factor Arrows
11983

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, 983

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 11 x 983 = 778,536

This can also be written as 23 x 32 x 111 x 9831 = 778,536

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


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