Q: What are the prime factors of the number 63,378,324?

 A: 2, 3, 89, 131, 151

Why are those the prime factors of the number 63,378,324?

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 63,378,324

63,378,324
Factor Arrows
231,689,162
Factor Arrows
215,844,581
Factor Arrows
35,281,527
Factor Arrows
31,760,509
Factor Arrows
8919,781
Factor Arrows
131151

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, 89, 131, 151

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 89 x 131 x 151 = 63,378,324

This can also be written as 22 x 32 x 891 x 1311 x 1511 = 63,378,324

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


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