Q: What are the prime factors of the number 1,806,208?

 A: 2, 103, 137

Why are those the prime factors of the number 1,806,208?

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 1,806,208

1,806,208
Factor Arrows
2903,104
Factor Arrows
2451,552
Factor Arrows
2225,776
Factor Arrows
2112,888
Factor Arrows
256,444
Factor Arrows
228,222
Factor Arrows
214,111
Factor Arrows
103137

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, 103, 137

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 103 x 137 = 1,806,208

This can also be written as 27 x 1031 x 1371 = 1,806,208

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


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