Q: What are the prime factors of the number 1,227,424?

 A: 2, 11, 317

Why are those the prime factors of the number 1,227,424?

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 1,227,424

1,227,424
Factor Arrows
2613,712
Factor Arrows
2306,856
Factor Arrows
2153,428
Factor Arrows
276,714
Factor Arrows
238,357
Factor Arrows
113,487
Factor Arrows
11317

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, 11, 317

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 11 x 11 x 317 = 1,227,424

This can also be written as 25 x 112 x 3171 = 1,227,424

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


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