Q: What are the prime factors of the number 11,318,454?

 A: 2, 3, 7, 1109

Why are those the prime factors of the number 11,318,454?

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 11,318,454

11,318,454
Factor Arrows
25,659,227
Factor Arrows
31,886,409
Factor Arrows
3628,803
Factor Arrows
3209,601
Factor Arrows
369,867
Factor Arrows
323,289
Factor Arrows
37,763
Factor Arrows
71,109

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, 1109

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 3 x 3 x 3 x 7 x 1,109 = 11,318,454

This can also be written as 21 x 36 x 71 x 1,1091 = 11,318,454

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


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