Q: What are the prime factors of the number 121,531,014?

 A: 2, 3, 11, 37, 53, 313

Why are those the prime factors of the number 121,531,014?

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 121,531,014

121,531,014
Factor Arrows
260,765,507
Factor Arrows
320,255,169
Factor Arrows
36,751,723
Factor Arrows
11613,793
Factor Arrows
3716,589
Factor Arrows
53313

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, 37, 53, 313

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 11 x 37 x 53 x 313 = 121,531,014

This can also be written as 21 x 32 x 111 x 371 x 531 x 3131 = 121,531,014

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


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