Q: What are the prime factors of the number 774,312?

 A: 2, 3, 7, 11, 419

Why are those the prime factors of the number 774,312?

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 774,312

774,312
Factor Arrows
2387,156
Factor Arrows
2193,578
Factor Arrows
296,789
Factor Arrows
332,263
Factor Arrows
74,609
Factor Arrows
11419

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, 419

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 7 x 11 x 419 = 774,312

This can also be written as 23 x 31 x 71 x 111 x 4191 = 774,312

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


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