Q: What are the prime factors of the number 222,415,420?

 A: 2, 5, 17, 654163

Why are those the prime factors of the number 222,415,420?

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 222,415,420

222,415,420
Factor Arrows
2111,207,710
Factor Arrows
255,603,855
Factor Arrows
511,120,771
Factor Arrows
17654,163

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, 17, 654163

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 17 x 654,163 = 222,415,420

This can also be written as 22 x 51 x 171 x 654,1631 = 222,415,420

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


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