Q: What are the prime factors of the number 411,424?

 A: 2, 13, 23, 43

Why are those the prime factors of the number 411,424?

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 411,424

411,424
Factor Arrows
2205,712
Factor Arrows
2102,856
Factor Arrows
251,428
Factor Arrows
225,714
Factor Arrows
212,857
Factor Arrows
13989
Factor Arrows
2343

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, 23, 43

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 13 x 23 x 43 = 411,424

This can also be written as 25 x 131 x 231 x 431 = 411,424

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


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