Q: What are the prime factors of the number 83,772,216?

 A: 2, 3, 11, 19, 293

Why are those the prime factors of the number 83,772,216?

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 83,772,216

83,772,216
Factor Arrows
241,886,108
Factor Arrows
220,943,054
Factor Arrows
210,471,527
Factor Arrows
33,490,509
Factor Arrows
31,163,503
Factor Arrows
11105,773
Factor Arrows
195,567
Factor Arrows
19293

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, 19, 293

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 11 x 19 x 19 x 293 = 83,772,216

This can also be written as 23 x 32 x 111 x 192 x 2931 = 83,772,216

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


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