Q: What are the prime factors of the number 316,776?

 A: 2, 3, 67, 197

Why are those the prime factors of the number 316,776?

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 316,776

316,776
Factor Arrows
2158,388
Factor Arrows
279,194
Factor Arrows
239,597
Factor Arrows
313,199
Factor Arrows
67197

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, 67, 197

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 67 x 197 = 316,776

This can also be written as 23 x 31 x 671 x 1971 = 316,776

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


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