Q: What are the prime factors of the number 222,103,125?

 A: 3, 5, 53, 149

Why are those the prime factors of the number 222,103,125?

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 222,103,125

222,103,125
Factor Arrows
374,034,375
Factor Arrows
324,678,125
Factor Arrows
54,935,625
Factor Arrows
5987,125
Factor Arrows
5197,425
Factor Arrows
539,485
Factor Arrows
57,897
Factor Arrows
53149

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:

3, 5, 53, 149

We can check our work by multiplying all of the prime factors together: 3 x 3 x 5 x 5 x 5 x 5 x 5 x 53 x 149 = 222,103,125

This can also be written as 32 x 55 x 531 x 1491 = 222,103,125

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


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