Q: What are the prime factors of the number 211,230,304?

 A: 2, 17, 97, 4003

Why are those the prime factors of the number 211,230,304?

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 211,230,304

211,230,304
Factor Arrows
2105,615,152
Factor Arrows
252,807,576
Factor Arrows
226,403,788
Factor Arrows
213,201,894
Factor Arrows
26,600,947
Factor Arrows
17388,291
Factor Arrows
974,003

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, 17, 97, 4003

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 17 x 97 x 4,003 = 211,230,304

This can also be written as 25 x 171 x 971 x 4,0031 = 211,230,304

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


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