Q: What are the prime factors of the number 22,862,240?

 A: 2, 5, 43, 3323

Why are those the prime factors of the number 22,862,240?

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 22,862,240

22,862,240
Factor Arrows
211,431,120
Factor Arrows
25,715,560
Factor Arrows
22,857,780
Factor Arrows
21,428,890
Factor Arrows
2714,445
Factor Arrows
5142,889
Factor Arrows
433,323

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, 43, 3323

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 43 x 3,323 = 22,862,240

This can also be written as 25 x 51 x 431 x 3,3231 = 22,862,240

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


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