Q: What are the prime factors of the number 538,540,000?

 A: 2, 5, 26927

Why are those the prime factors of the number 538,540,000?

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 538,540,000

538,540,000
Factor Arrows
2269,270,000
Factor Arrows
2134,635,000
Factor Arrows
267,317,500
Factor Arrows
233,658,750
Factor Arrows
216,829,375
Factor Arrows
53,365,875
Factor Arrows
5673,175
Factor Arrows
5134,635
Factor Arrows
526,927

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, 26927

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 5 x 5 x 5 x 5 x 26,927 = 538,540,000

This can also be written as 25 x 54 x 26,9271 = 538,540,000

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


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