Q: What are the prime factors of the number 77,003,264?

 A: 2, 13, 23, 503

Why are those the prime factors of the number 77,003,264?

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 77,003,264

77,003,264
Factor Arrows
238,501,632
Factor Arrows
219,250,816
Factor Arrows
29,625,408
Factor Arrows
24,812,704
Factor Arrows
22,406,352
Factor Arrows
21,203,176
Factor Arrows
2601,588
Factor Arrows
2300,794
Factor Arrows
2150,397
Factor Arrows
1311,569
Factor Arrows
23503

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, 13, 23, 503

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 2 x 2 x 13 x 23 x 503 = 77,003,264

This can also be written as 29 x 131 x 231 x 5031 = 77,003,264

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


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