Q: What are the prime factors of the number 42,396,606?

 A: 2, 3, 7, 17, 19793

Why are those the prime factors of the number 42,396,606?

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 42,396,606

42,396,606
Factor Arrows
221,198,303
Factor Arrows
37,066,101
Factor Arrows
32,355,367
Factor Arrows
7336,481
Factor Arrows
1719,793

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, 17, 19793

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 7 x 17 x 19,793 = 42,396,606

This can also be written as 21 x 32 x 71 x 171 x 19,7931 = 42,396,606

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


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