Q: What are the prime factors of the number 195,144,120?

 A: 2, 3, 5, 101, 1789

Why are those the prime factors of the number 195,144,120?

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 195,144,120

195,144,120
Factor Arrows
297,572,060
Factor Arrows
248,786,030
Factor Arrows
224,393,015
Factor Arrows
38,131,005
Factor Arrows
32,710,335
Factor Arrows
3903,445
Factor Arrows
5180,689
Factor Arrows
1011,789

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, 5, 101, 1789

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 3 x 5 x 101 x 1,789 = 195,144,120

This can also be written as 23 x 33 x 51 x 1011 x 1,7891 = 195,144,120

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


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