Q: What are the prime factors of the number 3,393,900?

 A: 2, 3, 5, 419

Why are those the prime factors of the number 3,393,900?

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 3,393,900

3,393,900
Factor Arrows
21,696,950
Factor Arrows
2848,475
Factor Arrows
3282,825
Factor Arrows
394,275
Factor Arrows
331,425
Factor Arrows
310,475
Factor Arrows
52,095
Factor Arrows
5419

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, 5, 419

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 3 x 3 x 5 x 5 x 419 = 3,393,900

This can also be written as 22 x 34 x 52 x 4191 = 3,393,900

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


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