Q: What are the prime factors of the number 225,042,240?

 A: 2, 3, 5, 53, 4423

Why are those the prime factors of the number 225,042,240?

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 225,042,240

225,042,240
Factor Arrows
2112,521,120
Factor Arrows
256,260,560
Factor Arrows
228,130,280
Factor Arrows
214,065,140
Factor Arrows
27,032,570
Factor Arrows
23,516,285
Factor Arrows
31,172,095
Factor Arrows
5234,419
Factor Arrows
534,423

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, 53, 4423

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 3 x 5 x 53 x 4,423 = 225,042,240

This can also be written as 26 x 31 x 51 x 531 x 4,4231 = 225,042,240

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


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