Q: What are the prime factors of the number 102,310,144?

 A: 2, 29, 13781

Why are those the prime factors of the number 102,310,144?

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 102,310,144

102,310,144
Factor Arrows
251,155,072
Factor Arrows
225,577,536
Factor Arrows
212,788,768
Factor Arrows
26,394,384
Factor Arrows
23,197,192
Factor Arrows
21,598,596
Factor Arrows
2799,298
Factor Arrows
2399,649
Factor Arrows
2913,781

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, 29, 13781

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 2 x 2 x 29 x 13,781 = 102,310,144

This can also be written as 28 x 291 x 13,7811 = 102,310,144

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


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