Q: What are the prime factors of the number 105,696,306?

 A: 2, 3, 1069, 1831

Why are those the prime factors of the number 105,696,306?

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 105,696,306

105,696,306
Factor Arrows
252,848,153
Factor Arrows
317,616,051
Factor Arrows
35,872,017
Factor Arrows
31,957,339
Factor Arrows
1,0691,831

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, 1069, 1831

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 1,069 x 1,831 = 105,696,306

This can also be written as 21 x 33 x 1,0691 x 1,8311 = 105,696,306

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


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