Q: What are the prime factors of the number 1,182,400?

 A: 2, 5, 739

Why are those the prime factors of the number 1,182,400?

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 1,182,400

1,182,400
Factor Arrows
2591,200
Factor Arrows
2295,600
Factor Arrows
2147,800
Factor Arrows
273,900
Factor Arrows
236,950
Factor Arrows
218,475
Factor Arrows
53,695
Factor Arrows
5739

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, 5, 739

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 5 x 5 x 739 = 1,182,400

This can also be written as 26 x 52 x 7391 = 1,182,400

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


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