Q: What are the prime factors of the number 811,780,035?

 A: 3, 5, 11, 19, 29, 8929

Why are those the prime factors of the number 811,780,035?

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 811,780,035

811,780,035
Factor Arrows
3270,593,345
Factor Arrows
554,118,669
Factor Arrows
114,919,879
Factor Arrows
19258,941
Factor Arrows
298,929

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:

3, 5, 11, 19, 29, 8929

We can check our work by multiplying all of the prime factors together: 3 x 5 x 11 x 19 x 29 x 8,929 = 811,780,035

This can also be written as 31 x 51 x 111 x 191 x 291 x 8,9291 = 811,780,035

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


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