Q: What are the prime factors of the number 222,254,538?

 A: 2, 3, 11, 89, 157, 241

Why are those the prime factors of the number 222,254,538?

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 222,254,538

222,254,538
Factor Arrows
2111,127,269
Factor Arrows
337,042,423
Factor Arrows
113,367,493
Factor Arrows
8937,837
Factor Arrows
157241

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, 11, 89, 157, 241

We can check our work by multiplying all of the prime factors together: 2 x 3 x 11 x 89 x 157 x 241 = 222,254,538

This can also be written as 21 x 31 x 111 x 891 x 1571 x 2411 = 222,254,538

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


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