Q: What are the prime factors of the number 201,202,320?

 A: 2, 3, 5, 11, 76213

Why are those the prime factors of the number 201,202,320?

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 201,202,320

201,202,320
Factor Arrows
2100,601,160
Factor Arrows
250,300,580
Factor Arrows
225,150,290
Factor Arrows
212,575,145
Factor Arrows
34,191,715
Factor Arrows
5838,343
Factor Arrows
1176,213

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, 5, 11, 76213

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 5 x 11 x 76,213 = 201,202,320

This can also be written as 24 x 31 x 51 x 111 x 76,2131 = 201,202,320

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


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