Q: What are the prime factors of the number 2,227,200?

 A: 2, 3, 5, 29

Why are those the prime factors of the number 2,227,200?

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 2,227,200

2,227,200
Factor Arrows
21,113,600
Factor Arrows
2556,800
Factor Arrows
2278,400
Factor Arrows
2139,200
Factor Arrows
269,600
Factor Arrows
234,800
Factor Arrows
217,400
Factor Arrows
28,700
Factor Arrows
24,350
Factor Arrows
22,175
Factor Arrows
3725
Factor Arrows
5145
Factor Arrows
529

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, 29

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 3 x 5 x 5 x 29 = 2,227,200

This can also be written as 210 x 31 x 52 x 291 = 2,227,200

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


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