Q: What are the prime factors of the number 105,327,750?

 A: 2, 3, 5, 11, 17, 751

Why are those the prime factors of the number 105,327,750?

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 105,327,750

105,327,750
Factor Arrows
252,663,875
Factor Arrows
317,554,625
Factor Arrows
53,510,925
Factor Arrows
5702,185
Factor Arrows
5140,437
Factor Arrows
1112,767
Factor Arrows
17751

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, 5, 11, 17, 751

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 5 x 5 x 11 x 17 x 751 = 105,327,750

This can also be written as 21 x 31 x 53 x 111 x 171 x 7511 = 105,327,750

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


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