Q: What are the prime factors of the number 13,411,424?

 A: 2, 13, 103, 313

Why are those the prime factors of the number 13,411,424?

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 13,411,424

13,411,424
Factor Arrows
26,705,712
Factor Arrows
23,352,856
Factor Arrows
21,676,428
Factor Arrows
2838,214
Factor Arrows
2419,107
Factor Arrows
1332,239
Factor Arrows
103313

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, 103, 313

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 103 x 313 = 13,411,424

This can also be written as 25 x 131 x 1031 x 3131 = 13,411,424

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


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