Q: What are the prime factors of the number 3,438,468?

 A: 2, 3, 11, 19, 457

Why are those the prime factors of the number 3,438,468?

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 3,438,468

3,438,468
Factor Arrows
21,719,234
Factor Arrows
2859,617
Factor Arrows
3286,539
Factor Arrows
395,513
Factor Arrows
118,683
Factor Arrows
19457

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, 11, 19, 457

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 11 x 19 x 457 = 3,438,468

This can also be written as 22 x 32 x 111 x 191 x 4571 = 3,438,468

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


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