Q: What are the prime factors of the number 1,546,624?

 A: 2, 43, 281

Why are those the prime factors of the number 1,546,624?

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 1,546,624

1,546,624
Factor Arrows
2773,312
Factor Arrows
2386,656
Factor Arrows
2193,328
Factor Arrows
296,664
Factor Arrows
248,332
Factor Arrows
224,166
Factor Arrows
212,083
Factor Arrows
43281

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, 43, 281

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 43 x 281 = 1,546,624

This can also be written as 27 x 431 x 2811 = 1,546,624

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


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