Q: What are the prime factors of the number 87,723,012?

 A: 2, 3, 13, 23, 1063

Why are those the prime factors of the number 87,723,012?

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 87,723,012

87,723,012
Factor Arrows
243,861,506
Factor Arrows
221,930,753
Factor Arrows
37,310,251
Factor Arrows
13562,327
Factor Arrows
2324,449
Factor Arrows
231,063

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, 23, 1063

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 13 x 23 x 23 x 1,063 = 87,723,012

This can also be written as 22 x 31 x 131 x 232 x 1,0631 = 87,723,012

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


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