Q: What are the prime factors of the number 801,666,372?

 A: 2, 3, 13, 29, 43, 317

Why are those the prime factors of the number 801,666,372?

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 801,666,372

801,666,372
Factor Arrows
2400,833,186
Factor Arrows
2200,416,593
Factor Arrows
366,805,531
Factor Arrows
135,138,887
Factor Arrows
13395,299
Factor Arrows
2913,631
Factor Arrows
43317

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, 29, 43, 317

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 13 x 13 x 29 x 43 x 317 = 801,666,372

This can also be written as 22 x 31 x 132 x 291 x 431 x 3171 = 801,666,372

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


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