Q: What are the prime factors of the number 22,563,000?

 A: 2, 3, 5, 23, 109

Why are those the prime factors of the number 22,563,000?

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 22,563,000

22,563,000
Factor Arrows
211,281,500
Factor Arrows
25,640,750
Factor Arrows
22,820,375
Factor Arrows
3940,125
Factor Arrows
3313,375
Factor Arrows
562,675
Factor Arrows
512,535
Factor Arrows
52,507
Factor Arrows
23109

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, 23, 109

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 5 x 5 x 5 x 23 x 109 = 22,563,000

This can also be written as 23 x 32 x 53 x 231 x 1091 = 22,563,000

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


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