Q: What are the prime factors of the number 22,204,000?

 A: 2, 5, 7, 13, 61

Why are those the prime factors of the number 22,204,000?

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 22,204,000

22,204,000
Factor Arrows
211,102,000
Factor Arrows
25,551,000
Factor Arrows
22,775,500
Factor Arrows
21,387,750
Factor Arrows
2693,875
Factor Arrows
5138,775
Factor Arrows
527,755
Factor Arrows
55,551
Factor Arrows
7793
Factor Arrows
1361

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, 13, 61

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 13 x 61 = 22,204,000

This can also be written as 25 x 53 x 71 x 131 x 611 = 22,204,000

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


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