Q: What are the prime factors of the number 555,344,140?

 A: 2, 5, 13, 43, 3821

Why are those the prime factors of the number 555,344,140?

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 555,344,140

555,344,140
Factor Arrows
2277,672,070
Factor Arrows
2138,836,035
Factor Arrows
527,767,207
Factor Arrows
132,135,939
Factor Arrows
13164,303
Factor Arrows
433,821

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, 13, 43, 3821

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 13 x 13 x 43 x 3,821 = 555,344,140

This can also be written as 22 x 51 x 132 x 431 x 3,8211 = 555,344,140

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


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