Q: What are the prime factors of the number 14,056,416?

 A: 2, 3, 11, 17, 29

Why are those the prime factors of the number 14,056,416?

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 14,056,416

14,056,416
Factor Arrows
27,028,208
Factor Arrows
23,514,104
Factor Arrows
21,757,052
Factor Arrows
2878,526
Factor Arrows
2439,263
Factor Arrows
3146,421
Factor Arrows
348,807
Factor Arrows
316,269
Factor Arrows
35,423
Factor Arrows
11493
Factor Arrows
1729

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, 17, 29

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 3 x 3 x 3 x 11 x 17 x 29 = 14,056,416

This can also be written as 25 x 34 x 111 x 171 x 291 = 14,056,416

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


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