Q: What are the prime factors of the number 102,663,176?

 A: 2, 7, 11, 109, 139

Why are those the prime factors of the number 102,663,176?

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 102,663,176

102,663,176
Factor Arrows
251,331,588
Factor Arrows
225,665,794
Factor Arrows
212,832,897
Factor Arrows
71,833,271
Factor Arrows
11166,661
Factor Arrows
1115,151
Factor Arrows
109139

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, 11, 109, 139

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 7 x 11 x 11 x 109 x 139 = 102,663,176

This can also be written as 23 x 71 x 112 x 1091 x 1391 = 102,663,176

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


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