Q: What are the prime factors of the number 4,323,328?

 A: 2, 2111

Why are those the prime factors of the number 4,323,328?

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 4,323,328

4,323,328
Factor Arrows
22,161,664
Factor Arrows
21,080,832
Factor Arrows
2540,416
Factor Arrows
2270,208
Factor Arrows
2135,104
Factor Arrows
267,552
Factor Arrows
233,776
Factor Arrows
216,888
Factor Arrows
28,444
Factor Arrows
24,222
Factor Arrows
22,111

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, 2111

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 2 x 2,111 = 4,323,328

This can also be written as 211 x 2,1111 = 4,323,328

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


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