Q: What are the prime factors of the number 121,302,202?

 A: 2, 7, 73, 118691

Why are those the prime factors of the number 121,302,202?

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 121,302,202

121,302,202
Factor Arrows
260,651,101
Factor Arrows
78,664,443
Factor Arrows
73118,691

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, 7, 73, 118691

We can check our work by multiplying all of the prime factors together: 2 x 7 x 73 x 118,691 = 121,302,202

This can also be written as 21 x 71 x 731 x 118,6911 = 121,302,202

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


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