Q: What are the prime factors of the number 12,468,465?

 A: 3, 5, 19, 4861

Why are those the prime factors of the number 12,468,465?

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 12,468,465

12,468,465
Factor Arrows
34,156,155
Factor Arrows
31,385,385
Factor Arrows
3461,795
Factor Arrows
592,359
Factor Arrows
194,861

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, 5, 19, 4861

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 5 x 19 x 4,861 = 12,468,465

This can also be written as 33 x 51 x 191 x 4,8611 = 12,468,465

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


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