Q: What are the prime factors of the number 120,454,203?

 A: 3, 37, 139, 211

Why are those the prime factors of the number 120,454,203?

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 120,454,203

120,454,203
Factor Arrows
340,151,401
Factor Arrows
371,085,173
Factor Arrows
3729,329
Factor Arrows
139211

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, 37, 139, 211

We can check our work by multiplying all of the prime factors together: 3 x 37 x 37 x 139 x 211 = 120,454,203

This can also be written as 31 x 372 x 1391 x 2111 = 120,454,203

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


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