Q: What are the prime factors of the number 805,366,422?

 A: 2, 3, 7, 31, 68729

Why are those the prime factors of the number 805,366,422?

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 805,366,422

805,366,422
Factor Arrows
2402,683,211
Factor Arrows
3134,227,737
Factor Arrows
344,742,579
Factor Arrows
314,914,193
Factor Arrows
72,130,599
Factor Arrows
3168,729

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, 31, 68729

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 7 x 31 x 68,729 = 805,366,422

This can also be written as 21 x 33 x 71 x 311 x 68,7291 = 805,366,422

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


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