Q: What are the prime factors of the number 77,114,340?

 A: 2, 3, 5, 191, 2243

Why are those the prime factors of the number 77,114,340?

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 77,114,340

77,114,340
Factor Arrows
238,557,170
Factor Arrows
219,278,585
Factor Arrows
36,426,195
Factor Arrows
32,142,065
Factor Arrows
5428,413
Factor Arrows
1912,243

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, 5, 191, 2243

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 5 x 191 x 2,243 = 77,114,340

This can also be written as 22 x 32 x 51 x 1911 x 2,2431 = 77,114,340

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


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