Q: What are the prime factors of the number 106,155,432?

 A: 2, 3, 19, 73, 1063

Why are those the prime factors of the number 106,155,432?

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 106,155,432

106,155,432
Factor Arrows
253,077,716
Factor Arrows
226,538,858
Factor Arrows
213,269,429
Factor Arrows
34,423,143
Factor Arrows
31,474,381
Factor Arrows
1977,599
Factor Arrows
731,063

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, 19, 73, 1063

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 19 x 73 x 1,063 = 106,155,432

This can also be written as 23 x 32 x 191 x 731 x 1,0631 = 106,155,432

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


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