Q: What are the prime factors of the number 216,141,450?

 A: 2, 3, 5, 7, 4201

Why are those the prime factors of the number 216,141,450?

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 216,141,450

216,141,450
Factor Arrows
2108,070,725
Factor Arrows
336,023,575
Factor Arrows
57,204,715
Factor Arrows
51,440,943
Factor Arrows
7205,849
Factor Arrows
729,407
Factor Arrows
74,201

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, 7, 4201

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 5 x 7 x 7 x 7 x 4,201 = 216,141,450

This can also be written as 21 x 31 x 52 x 73 x 4,2011 = 216,141,450

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


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