Q: What are the prime factors of the number 72,088,448?

 A: 2, 79, 7129

Why are those the prime factors of the number 72,088,448?

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 72,088,448

72,088,448
Factor Arrows
236,044,224
Factor Arrows
218,022,112
Factor Arrows
29,011,056
Factor Arrows
24,505,528
Factor Arrows
22,252,764
Factor Arrows
21,126,382
Factor Arrows
2563,191
Factor Arrows
797,129

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, 79, 7129

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 79 x 7,129 = 72,088,448

This can also be written as 27 x 791 x 7,1291 = 72,088,448

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


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