Q: What are the prime factors of the number 78,182,028?

 A: 2, 3, 29, 74887

Why are those the prime factors of the number 78,182,028?

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 78,182,028

78,182,028
Factor Arrows
239,091,014
Factor Arrows
219,545,507
Factor Arrows
36,515,169
Factor Arrows
32,171,723
Factor Arrows
2974,887

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, 29, 74887

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 29 x 74,887 = 78,182,028

This can also be written as 22 x 32 x 291 x 74,8871 = 78,182,028

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


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