Q: What are the prime factors of the number 31,772,574?

 A: 2, 3, 29, 6763

Why are those the prime factors of the number 31,772,574?

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 31,772,574

31,772,574
Factor Arrows
215,886,287
Factor Arrows
35,295,429
Factor Arrows
31,765,143
Factor Arrows
3588,381
Factor Arrows
3196,127
Factor Arrows
296,763

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, 29, 6763

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 3 x 29 x 6,763 = 31,772,574

This can also be written as 21 x 34 x 291 x 6,7631 = 31,772,574

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


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