Q: What are the prime factors of the number 223,446,140?

 A: 2, 5, 31, 103, 3499

Why are those the prime factors of the number 223,446,140?

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 223,446,140

223,446,140
Factor Arrows
2111,723,070
Factor Arrows
255,861,535
Factor Arrows
511,172,307
Factor Arrows
31360,397
Factor Arrows
1033,499

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, 31, 103, 3499

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 31 x 103 x 3,499 = 223,446,140

This can also be written as 22 x 51 x 311 x 1031 x 3,4991 = 223,446,140

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


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