Q: What are the prime factors of the number 11,123,104?

 A: 2, 281, 1237

Why are those the prime factors of the number 11,123,104?

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 11,123,104

11,123,104
Factor Arrows
25,561,552
Factor Arrows
22,780,776
Factor Arrows
21,390,388
Factor Arrows
2695,194
Factor Arrows
2347,597
Factor Arrows
2811,237

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, 281, 1237

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 281 x 1,237 = 11,123,104

This can also be written as 25 x 2811 x 1,2371 = 11,123,104

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


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