Q: What are the prime factors of the number 77,038,040?

 A: 2, 5, 23, 83737

Why are those the prime factors of the number 77,038,040?

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 77,038,040

77,038,040
Factor Arrows
238,519,020
Factor Arrows
219,259,510
Factor Arrows
29,629,755
Factor Arrows
51,925,951
Factor Arrows
2383,737

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, 5, 23, 83737

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 5 x 23 x 83,737 = 77,038,040

This can also be written as 23 x 51 x 231 x 83,7371 = 77,038,040

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


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