Q: What are the prime factors of the number 22,889,000?

 A: 2, 5, 47, 487

Why are those the prime factors of the number 22,889,000?

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 22,889,000

22,889,000
Factor Arrows
211,444,500
Factor Arrows
25,722,250
Factor Arrows
22,861,125
Factor Arrows
5572,225
Factor Arrows
5114,445
Factor Arrows
522,889
Factor Arrows
47487

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, 47, 487

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 5 x 5 x 5 x 47 x 487 = 22,889,000

This can also be written as 23 x 53 x 471 x 4871 = 22,889,000

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


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