Q: What are the prime factors of the number 1,366,404?

 A: 2, 3, 13, 19, 461

Why are those the prime factors of the number 1,366,404?

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 1,366,404

1,366,404
Factor Arrows
2683,202
Factor Arrows
2341,601
Factor Arrows
3113,867
Factor Arrows
138,759
Factor Arrows
19461

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, 13, 19, 461

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 13 x 19 x 461 = 1,366,404

This can also be written as 22 x 31 x 131 x 191 x 4611 = 1,366,404

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


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