Q: What are the prime factors of the number 23,143,424?

 A: 2, 97, 233

Why are those the prime factors of the number 23,143,424?

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 23,143,424

23,143,424
Factor Arrows
211,571,712
Factor Arrows
25,785,856
Factor Arrows
22,892,928
Factor Arrows
21,446,464
Factor Arrows
2723,232
Factor Arrows
2361,616
Factor Arrows
2180,808
Factor Arrows
290,404
Factor Arrows
245,202
Factor Arrows
222,601
Factor Arrows
97233

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, 97, 233

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 2 x 2 x 97 x 233 = 23,143,424

This can also be written as 210 x 971 x 2331 = 23,143,424

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


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