Q: What are the prime factors of the number 201,045,504?

 A: 2, 3, 11, 73, 163

Why are those the prime factors of the number 201,045,504?

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 201,045,504

201,045,504
Factor Arrows
2100,522,752
Factor Arrows
250,261,376
Factor Arrows
225,130,688
Factor Arrows
212,565,344
Factor Arrows
26,282,672
Factor Arrows
23,141,336
Factor Arrows
21,570,668
Factor Arrows
2785,334
Factor Arrows
2392,667
Factor Arrows
3130,889
Factor Arrows
1111,899
Factor Arrows
73163

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, 73, 163

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 3 x 11 x 73 x 163 = 201,045,504

This can also be written as 29 x 31 x 111 x 731 x 1631 = 201,045,504

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


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