Q: What are the prime factors of the number 101,463,516?

 A: 2, 3, 7, 11, 83

Why are those the prime factors of the number 101,463,516?

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 101,463,516

101,463,516
Factor Arrows
250,731,758
Factor Arrows
225,365,879
Factor Arrows
38,455,293
Factor Arrows
32,818,431
Factor Arrows
3939,477
Factor Arrows
3313,159
Factor Arrows
744,737
Factor Arrows
76,391
Factor Arrows
7913
Factor Arrows
1183

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, 7, 11, 83

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 3 x 3 x 7 x 7 x 7 x 11 x 83 = 101,463,516

This can also be written as 22 x 34 x 73 x 111 x 831 = 101,463,516

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


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