Q: What are the prime factors of the number 31,110,051?

 A: 3, 7, 17, 59, 211

Why are those the prime factors of the number 31,110,051?

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 31,110,051

31,110,051
Factor Arrows
310,370,017
Factor Arrows
71,481,431
Factor Arrows
7211,633
Factor Arrows
1712,449
Factor Arrows
59211

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:

3, 7, 17, 59, 211

We can check our work by multiplying all of the prime factors together: 3 x 7 x 7 x 17 x 59 x 211 = 31,110,051

This can also be written as 31 x 72 x 171 x 591 x 2111 = 31,110,051

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


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