Q: What are the prime factors of the number 101,744,480?

 A: 2, 5, 31, 73, 281

Why are those the prime factors of the number 101,744,480?

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 101,744,480

101,744,480
Factor Arrows
250,872,240
Factor Arrows
225,436,120
Factor Arrows
212,718,060
Factor Arrows
26,359,030
Factor Arrows
23,179,515
Factor Arrows
5635,903
Factor Arrows
3120,513
Factor Arrows
73281

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, 5, 31, 73, 281

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 5 x 31 x 73 x 281 = 101,744,480

This can also be written as 25 x 51 x 311 x 731 x 2811 = 101,744,480

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


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