Q: What are the prime factors of the number 116,117,946?

 A: 2, 3, 7, 173, 761

Why are those the prime factors of the number 116,117,946?

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 116,117,946

116,117,946
Factor Arrows
258,058,973
Factor Arrows
319,352,991
Factor Arrows
36,450,997
Factor Arrows
7921,571
Factor Arrows
7131,653
Factor Arrows
173761

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, 7, 173, 761

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 7 x 7 x 173 x 761 = 116,117,946

This can also be written as 21 x 32 x 72 x 1731 x 7611 = 116,117,946

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


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