Q: What are the prime factors of the number 1,124,608?

 A: 2, 23, 191

Why are those the prime factors of the number 1,124,608?

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 1,124,608

1,124,608
Factor Arrows
2562,304
Factor Arrows
2281,152
Factor Arrows
2140,576
Factor Arrows
270,288
Factor Arrows
235,144
Factor Arrows
217,572
Factor Arrows
28,786
Factor Arrows
24,393
Factor Arrows
23191

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, 23, 191

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 23 x 191 = 1,124,608

This can also be written as 28 x 231 x 1911 = 1,124,608

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


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