Q: What are the prime factors of the number 4,379,232?

 A: 2, 3, 11, 13, 29

Why are those the prime factors of the number 4,379,232?

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 4,379,232

4,379,232
Factor Arrows
22,189,616
Factor Arrows
21,094,808
Factor Arrows
2547,404
Factor Arrows
2273,702
Factor Arrows
2136,851
Factor Arrows
345,617
Factor Arrows
114,147
Factor Arrows
11377
Factor Arrows
1329

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, 13, 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 11 x 11 x 13 x 29 = 4,379,232

This can also be written as 25 x 31 x 112 x 131 x 291 = 4,379,232

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


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