Q: What are the prime factors of the number 1,806,272?

 A: 2, 13, 167

Why are those the prime factors of the number 1,806,272?

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 1,806,272

1,806,272
Factor Arrows
2903,136
Factor Arrows
2451,568
Factor Arrows
2225,784
Factor Arrows
2112,892
Factor Arrows
256,446
Factor Arrows
228,223
Factor Arrows
132,171
Factor Arrows
13167

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, 13, 167

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 13 x 13 x 167 = 1,806,272

This can also be written as 26 x 132 x 1671 = 1,806,272

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


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