Q: What are the prime factors of the number 1,636,224?

 A: 2, 3, 4261

Why are those the prime factors of the number 1,636,224?

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 1,636,224

1,636,224
Factor Arrows
2818,112
Factor Arrows
2409,056
Factor Arrows
2204,528
Factor Arrows
2102,264
Factor Arrows
251,132
Factor Arrows
225,566
Factor Arrows
212,783
Factor Arrows
34,261

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, 3, 4261

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 3 x 4,261 = 1,636,224

This can also be written as 27 x 31 x 4,2611 = 1,636,224

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


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