Q: What are the prime factors of the number 441,144?

 A: 2, 3, 11, 557

Why are those the prime factors of the number 441,144?

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 441,144

441,144
Factor Arrows
2220,572
Factor Arrows
2110,286
Factor Arrows
255,143
Factor Arrows
318,381
Factor Arrows
36,127
Factor Arrows
11557

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, 11, 557

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 11 x 557 = 441,144

This can also be written as 23 x 32 x 111 x 5571 = 441,144

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


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