Q: What are the prime factors of the number 268,538,500?

 A: 2, 5, 59, 9103

Why are those the prime factors of the number 268,538,500?

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 268,538,500

268,538,500
Factor Arrows
2134,269,250
Factor Arrows
267,134,625
Factor Arrows
513,426,925
Factor Arrows
52,685,385
Factor Arrows
5537,077
Factor Arrows
599,103

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, 59, 9103

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 5 x 5 x 59 x 9,103 = 268,538,500

This can also be written as 22 x 53 x 591 x 9,1031 = 268,538,500

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


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