Q: What are the prime factors of the number 120,076,407?

 A: 3, 11, 71, 1553

Why are those the prime factors of the number 120,076,407?

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 120,076,407

120,076,407
Factor Arrows
340,025,469
Factor Arrows
313,341,823
Factor Arrows
111,212,893
Factor Arrows
11110,263
Factor Arrows
711,553

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, 11, 71, 1553

We can check our work by multiplying all of the prime factors together: 3 x 3 x 11 x 11 x 71 x 1,553 = 120,076,407

This can also be written as 32 x 112 x 711 x 1,5531 = 120,076,407

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


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