Q: What are the prime factors of the number 31,540,206?

 A: 2, 3, 31, 37, 4583

Why are those the prime factors of the number 31,540,206?

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 31,540,206

31,540,206
Factor Arrows
215,770,103
Factor Arrows
35,256,701
Factor Arrows
31169,571
Factor Arrows
374,583

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, 3, 31, 37, 4583

We can check our work by multiplying all of the prime factors together: 2 x 3 x 31 x 37 x 4,583 = 31,540,206

This can also be written as 21 x 31 x 311 x 371 x 4,5831 = 31,540,206

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


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