Q: What are the prime factors of the number 101,205,504?

 A: 2, 3, 7321

Why are those the prime factors of the number 101,205,504?

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 101,205,504

101,205,504
Factor Arrows
250,602,752
Factor Arrows
225,301,376
Factor Arrows
212,650,688
Factor Arrows
26,325,344
Factor Arrows
23,162,672
Factor Arrows
21,581,336
Factor Arrows
2790,668
Factor Arrows
2395,334
Factor Arrows
2197,667
Factor Arrows
365,889
Factor Arrows
321,963
Factor Arrows
37,321

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, 7321

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 2 x 3 x 3 x 3 x 7,321 = 101,205,504

This can also be written as 29 x 33 x 7,3211 = 101,205,504

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


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