Q: What are the prime factors of the number 11,452,000?

 A: 2, 5, 7, 409

Why are those the prime factors of the number 11,452,000?

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 11,452,000

11,452,000
Factor Arrows
25,726,000
Factor Arrows
22,863,000
Factor Arrows
21,431,500
Factor Arrows
2715,750
Factor Arrows
2357,875
Factor Arrows
571,575
Factor Arrows
514,315
Factor Arrows
52,863
Factor Arrows
7409

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, 7, 409

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 5 x 5 x 5 x 7 x 409 = 11,452,000

This can also be written as 25 x 53 x 71 x 4091 = 11,452,000

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


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