Q: What are the prime factors of the number 225,272,220?

 A: 2, 3, 5, 1867, 2011

Why are those the prime factors of the number 225,272,220?

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 225,272,220

225,272,220
Factor Arrows
2112,636,110
Factor Arrows
256,318,055
Factor Arrows
318,772,685
Factor Arrows
53,754,537
Factor Arrows
1,8672,011

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, 1867, 2011

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 1,867 x 2,011 = 225,272,220

This can also be written as 22 x 31 x 51 x 1,8671 x 2,0111 = 225,272,220

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


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