Q: What are the prime factors of the number 121,932,162?

 A: 2, 3, 11, 233, 881

Why are those the prime factors of the number 121,932,162?

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 121,932,162

121,932,162
Factor Arrows
260,966,081
Factor Arrows
320,322,027
Factor Arrows
36,774,009
Factor Arrows
32,258,003
Factor Arrows
11205,273
Factor Arrows
233881

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, 11, 233, 881

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 11 x 233 x 881 = 121,932,162

This can also be written as 21 x 33 x 111 x 2331 x 8811 = 121,932,162

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


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