Q: What are the prime factors of the number 16,245,432?

 A: 2, 3, 7, 32233

Why are those the prime factors of the number 16,245,432?

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 16,245,432

16,245,432
Factor Arrows
28,122,716
Factor Arrows
24,061,358
Factor Arrows
22,030,679
Factor Arrows
3676,893
Factor Arrows
3225,631
Factor Arrows
732,233

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, 7, 32233

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 7 x 32,233 = 16,245,432

This can also be written as 23 x 32 x 71 x 32,2331 = 16,245,432

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


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