Q: What are the prime factors of the number 255,404,200?

 A: 2, 5, 1277021

Why are those the prime factors of the number 255,404,200?

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 255,404,200

255,404,200
Factor Arrows
2127,702,100
Factor Arrows
263,851,050
Factor Arrows
231,925,525
Factor Arrows
56,385,105
Factor Arrows
51,277,021

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, 1277021

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 5 x 5 x 1,277,021 = 255,404,200

This can also be written as 23 x 52 x 1,277,0211 = 255,404,200

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


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