Q: What are the prime factors of the number 805,005,150?

 A: 2, 3, 5, 43, 137, 911

Why are those the prime factors of the number 805,005,150?

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 805,005,150

805,005,150
Factor Arrows
2402,502,575
Factor Arrows
3134,167,525
Factor Arrows
526,833,505
Factor Arrows
55,366,701
Factor Arrows
43124,807
Factor Arrows
137911

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, 5, 43, 137, 911

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 5 x 43 x 137 x 911 = 805,005,150

This can also be written as 21 x 31 x 52 x 431 x 1371 x 9111 = 805,005,150

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


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