Q: What are the prime factors of the number 26,531,000?

 A: 2, 5, 43, 617

Why are those the prime factors of the number 26,531,000?

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 26,531,000

26,531,000
Factor Arrows
213,265,500
Factor Arrows
26,632,750
Factor Arrows
23,316,375
Factor Arrows
5663,275
Factor Arrows
5132,655
Factor Arrows
526,531
Factor Arrows
43617

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, 43, 617

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 5 x 5 x 5 x 43 x 617 = 26,531,000

This can also be written as 23 x 53 x 431 x 6171 = 26,531,000

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


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