Q: What are the prime factors of the number 100,767,296?

 A: 2, 7, 17, 101, 131

Why are those the prime factors of the number 100,767,296?

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 100,767,296

100,767,296
Factor Arrows
250,383,648
Factor Arrows
225,191,824
Factor Arrows
212,595,912
Factor Arrows
26,297,956
Factor Arrows
23,148,978
Factor Arrows
21,574,489
Factor Arrows
7224,927
Factor Arrows
1713,231
Factor Arrows
101131

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, 7, 17, 101, 131

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 7 x 17 x 101 x 131 = 100,767,296

This can also be written as 26 x 71 x 171 x 1011 x 1311 = 100,767,296

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


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