Q: What are the prime factors of the number 120,212,430?

 A: 2, 3, 5, 13, 19, 16223

Why are those the prime factors of the number 120,212,430?

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 120,212,430

120,212,430
Factor Arrows
260,106,215
Factor Arrows
320,035,405
Factor Arrows
54,007,081
Factor Arrows
13308,237
Factor Arrows
1916,223

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, 13, 19, 16223

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 13 x 19 x 16,223 = 120,212,430

This can also be written as 21 x 31 x 51 x 131 x 191 x 16,2231 = 120,212,430

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


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