Q: What are the prime factors of the number 11,026,440?

 A: 2, 3, 5, 109, 281

Why are those the prime factors of the number 11,026,440?

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 11,026,440

11,026,440
Factor Arrows
25,513,220
Factor Arrows
22,756,610
Factor Arrows
21,378,305
Factor Arrows
3459,435
Factor Arrows
3153,145
Factor Arrows
530,629
Factor Arrows
109281

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, 109, 281

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 5 x 109 x 281 = 11,026,440

This can also be written as 23 x 32 x 51 x 1091 x 2811 = 11,026,440

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


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