Q: What are the prime factors of the number 31,414,045?

 A: 5, 13, 17, 28429

Why are those the prime factors of the number 31,414,045?

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 31,414,045

31,414,045
Factor Arrows
56,282,809
Factor Arrows
13483,293
Factor Arrows
1728,429

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:

5, 13, 17, 28429

We can check our work by multiplying all of the prime factors together: 5 x 13 x 17 x 28,429 = 31,414,045

This can also be written as 51 x 131 x 171 x 28,4291 = 31,414,045

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


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