Q: What are the prime factors of the number 776,736?

 A: 2, 3, 29, 31

Why are those the prime factors of the number 776,736?

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 776,736

776,736
Factor Arrows
2388,368
Factor Arrows
2194,184
Factor Arrows
297,092
Factor Arrows
248,546
Factor Arrows
224,273
Factor Arrows
38,091
Factor Arrows
32,697
Factor Arrows
3899
Factor Arrows
2931

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, 29, 31

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 3 x 3 x 29 x 31 = 776,736

This can also be written as 25 x 33 x 291 x 311 = 776,736

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


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