Q: What are the prime factors of the number 108,467,424?

 A: 2, 3, 13, 29, 37

Why are those the prime factors of the number 108,467,424?

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 108,467,424

108,467,424
Factor Arrows
254,233,712
Factor Arrows
227,116,856
Factor Arrows
213,558,428
Factor Arrows
26,779,214
Factor Arrows
23,389,607
Factor Arrows
31,129,869
Factor Arrows
3376,623
Factor Arrows
3125,541
Factor Arrows
341,847
Factor Arrows
313,949
Factor Arrows
131,073
Factor Arrows
2937

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, 13, 29, 37

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 3 x 13 x 29 x 37 = 108,467,424

This can also be written as 25 x 35 x 131 x 291 x 371 = 108,467,424

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


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