Q: What are the prime factors of the number 101,705,376?

 A: 2, 3, 211, 5021

Why are those the prime factors of the number 101,705,376?

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 101,705,376

101,705,376
Factor Arrows
250,852,688
Factor Arrows
225,426,344
Factor Arrows
212,713,172
Factor Arrows
26,356,586
Factor Arrows
23,178,293
Factor Arrows
31,059,431
Factor Arrows
2115,021

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, 211, 5021

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 211 x 5,021 = 101,705,376

This can also be written as 25 x 31 x 2111 x 5,0211 = 101,705,376

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


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