Q: What are the prime factors of the number 1,764,224?

 A: 2, 7, 11, 179

Why are those the prime factors of the number 1,764,224?

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 1,764,224

1,764,224
Factor Arrows
2882,112
Factor Arrows
2441,056
Factor Arrows
2220,528
Factor Arrows
2110,264
Factor Arrows
255,132
Factor Arrows
227,566
Factor Arrows
213,783
Factor Arrows
71,969
Factor Arrows
11179

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, 7, 11, 179

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 7 x 11 x 179 = 1,764,224

This can also be written as 27 x 71 x 111 x 1791 = 1,764,224

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


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