Q: What are the prime factors of the number 77,304,198?

 A: 2, 3, 19, 29, 67, 349

Why are those the prime factors of the number 77,304,198?

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 77,304,198

77,304,198
Factor Arrows
238,652,099
Factor Arrows
312,884,033
Factor Arrows
19678,107
Factor Arrows
2923,383
Factor Arrows
67349

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, 19, 29, 67, 349

We can check our work by multiplying all of the prime factors together: 2 x 3 x 19 x 29 x 67 x 349 = 77,304,198

This can also be written as 21 x 31 x 191 x 291 x 671 x 3491 = 77,304,198

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


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