Q: What are the prime factors of the number 42,807,447?

 A: 3, 528487

Why are those the prime factors of the number 42,807,447?

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 42,807,447

42,807,447
Factor Arrows
314,269,149
Factor Arrows
34,756,383
Factor Arrows
31,585,461
Factor Arrows
3528,487

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, 528487

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 528,487 = 42,807,447

This can also be written as 34 x 528,4871 = 42,807,447

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


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