Q: What are the prime factors of the number 2,259,712?

 A: 2, 7, 13, 97

Why are those the prime factors of the number 2,259,712?

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 2,259,712

2,259,712
Factor Arrows
21,129,856
Factor Arrows
2564,928
Factor Arrows
2282,464
Factor Arrows
2141,232
Factor Arrows
270,616
Factor Arrows
235,308
Factor Arrows
217,654
Factor Arrows
28,827
Factor Arrows
71,261
Factor Arrows
1397

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, 7, 13, 97

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 7 x 13 x 97 = 2,259,712

This can also be written as 28 x 71 x 131 x 971 = 2,259,712

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


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