Q: What are the prime factors of the number 111,302,000?

 A: 2, 5, 19, 29, 101

Why are those the prime factors of the number 111,302,000?

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 111,302,000

111,302,000
Factor Arrows
255,651,000
Factor Arrows
227,825,500
Factor Arrows
213,912,750
Factor Arrows
26,956,375
Factor Arrows
51,391,275
Factor Arrows
5278,255
Factor Arrows
555,651
Factor Arrows
192,929
Factor Arrows
29101

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, 5, 19, 29, 101

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 5 x 5 x 19 x 29 x 101 = 111,302,000

This can also be written as 24 x 53 x 191 x 291 x 1011 = 111,302,000

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


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