Q: What are the prime factors of the number 804,352,878?

 A: 2, 3, 7, 19, 79, 4253

Why are those the prime factors of the number 804,352,878?

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 804,352,878

804,352,878
Factor Arrows
2402,176,439
Factor Arrows
3134,058,813
Factor Arrows
344,686,271
Factor Arrows
76,383,753
Factor Arrows
19335,987
Factor Arrows
794,253

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, 19, 79, 4253

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 7 x 19 x 79 x 4,253 = 804,352,878

This can also be written as 21 x 32 x 71 x 191 x 791 x 4,2531 = 804,352,878

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


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