Q: What are the prime factors of the number 769,230?

 A: 2, 3, 5, 7, 11, 37

Why are those the prime factors of the number 769,230?

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 769,230

769,230
Factor Arrows
2384,615
Factor Arrows
3128,205
Factor Arrows
342,735
Factor Arrows
314,245
Factor Arrows
52,849
Factor Arrows
7407
Factor Arrows
1137

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, 7, 11, 37

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 5 x 7 x 11 x 37 = 769,230

This can also be written as 21 x 33 x 51 x 71 x 111 x 371 = 769,230

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


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