Q: What are the prime factors of the number 1,160,768?

 A: 2, 7, 2591

Why are those the prime factors of the number 1,160,768?

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 1,160,768

1,160,768
Factor Arrows
2580,384
Factor Arrows
2290,192
Factor Arrows
2145,096
Factor Arrows
272,548
Factor Arrows
236,274
Factor Arrows
218,137
Factor Arrows
72,591

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, 7, 2591

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 7 x 2,591 = 1,160,768

This can also be written as 26 x 71 x 2,5911 = 1,160,768

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


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