Q: What are the prime factors of the number 87,028,263?

 A: 3, 7, 7309

Why are those the prime factors of the number 87,028,263?

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 87,028,263

87,028,263
Factor Arrows
329,009,421
Factor Arrows
39,669,807
Factor Arrows
33,223,269
Factor Arrows
31,074,423
Factor Arrows
3358,141
Factor Arrows
751,163
Factor Arrows
77,309

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, 7, 7309

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 7 x 7 x 7,309 = 87,028,263

This can also be written as 35 x 72 x 7,3091 = 87,028,263

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


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