Q: What are the prime factors of the number 225,445,360?

 A: 2, 5, 7, 402581

Why are those the prime factors of the number 225,445,360?

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 225,445,360

225,445,360
Factor Arrows
2112,722,680
Factor Arrows
256,361,340
Factor Arrows
228,180,670
Factor Arrows
214,090,335
Factor Arrows
52,818,067
Factor Arrows
7402,581

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, 7, 402581

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 7 x 402,581 = 225,445,360

This can also be written as 24 x 51 x 71 x 402,5811 = 225,445,360

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


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