Q: What are the prime factors of the number 101,000,120?

 A: 2, 5, 13, 43, 4517

Why are those the prime factors of the number 101,000,120?

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 101,000,120

101,000,120
Factor Arrows
250,500,060
Factor Arrows
225,250,030
Factor Arrows
212,625,015
Factor Arrows
52,525,003
Factor Arrows
13194,231
Factor Arrows
434,517

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, 13, 43, 4517

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 5 x 13 x 43 x 4,517 = 101,000,120

This can also be written as 23 x 51 x 131 x 431 x 4,5171 = 101,000,120

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


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