Q: What are the prime factors of the number 1,224,544?

 A: 2, 17, 2251

Why are those the prime factors of the number 1,224,544?

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 1,224,544

1,224,544
Factor Arrows
2612,272
Factor Arrows
2306,136
Factor Arrows
2153,068
Factor Arrows
276,534
Factor Arrows
238,267
Factor Arrows
172,251

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, 17, 2251

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 17 x 2,251 = 1,224,544

This can also be written as 25 x 171 x 2,2511 = 1,224,544

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


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