Q: What are the prime factors of the number 42,450,681?

 A: 3, 7, 13, 131, 1187

Why are those the prime factors of the number 42,450,681?

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 42,450,681

42,450,681
Factor Arrows
314,150,227
Factor Arrows
72,021,461
Factor Arrows
13155,497
Factor Arrows
1311,187

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, 13, 131, 1187

We can check our work by multiplying all of the prime factors together: 3 x 7 x 13 x 131 x 1,187 = 42,450,681

This can also be written as 31 x 71 x 131 x 1311 x 1,1871 = 42,450,681

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


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