Q: What are the prime factors of the number 76,678,208?

 A: 2, 37, 32381

Why are those the prime factors of the number 76,678,208?

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 76,678,208

76,678,208
Factor Arrows
238,339,104
Factor Arrows
219,169,552
Factor Arrows
29,584,776
Factor Arrows
24,792,388
Factor Arrows
22,396,194
Factor Arrows
21,198,097
Factor Arrows
3732,381

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, 37, 32381

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 37 x 32,381 = 76,678,208

This can also be written as 26 x 371 x 32,3811 = 76,678,208

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


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