Q: What are the prime factors of the number 332,021,200?

 A: 2, 5, 7, 19, 79

Why are those the prime factors of the number 332,021,200?

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 332,021,200

332,021,200
Factor Arrows
2166,010,600
Factor Arrows
283,005,300
Factor Arrows
241,502,650
Factor Arrows
220,751,325
Factor Arrows
54,150,265
Factor Arrows
5830,053
Factor Arrows
7118,579
Factor Arrows
196,241
Factor Arrows
7979

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, 5, 7, 19, 79

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 5 x 7 x 19 x 79 x 79 = 332,021,200

This can also be written as 24 x 52 x 71 x 191 x 792 = 332,021,200

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


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