Q: What are the prime factors of the number 277,176,438?

 A: 2, 3, 7, 11, 89, 107

Why are those the prime factors of the number 277,176,438?

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 277,176,438

277,176,438
Factor Arrows
2138,588,219
Factor Arrows
346,196,073
Factor Arrows
315,398,691
Factor Arrows
35,132,897
Factor Arrows
7733,271
Factor Arrows
7104,753
Factor Arrows
119,523
Factor Arrows
89107

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, 7, 11, 89, 107

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 7 x 7 x 11 x 89 x 107 = 277,176,438

This can also be written as 21 x 33 x 72 x 111 x 891 x 1071 = 277,176,438

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


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