Q: What are the prime factors of the number 31,141,362?

 A: 2, 3, 7, 73, 1451

Why are those the prime factors of the number 31,141,362?

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 31,141,362

31,141,362
Factor Arrows
215,570,681
Factor Arrows
35,190,227
Factor Arrows
7741,461
Factor Arrows
7105,923
Factor Arrows
731,451

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, 7, 73, 1451

We can check our work by multiplying all of the prime factors together: 2 x 3 x 7 x 7 x 73 x 1,451 = 31,141,362

This can also be written as 21 x 31 x 72 x 731 x 1,4511 = 31,141,362

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


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