Q: What are the prime factors of the number 121,022,001?

 A: 3, 19, 193

Why are those the prime factors of the number 121,022,001?

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 121,022,001

121,022,001
Factor Arrows
340,340,667
Factor Arrows
313,446,889
Factor Arrows
19707,731
Factor Arrows
1937,249
Factor Arrows
193193

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:

3, 19, 193

We can check our work by multiplying all of the prime factors together: 3 x 3 x 19 x 19 x 193 x 193 = 121,022,001

This can also be written as 32 x 192 x 1932 = 121,022,001

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


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