Q: What are the prime factors of the number 141,112,320?

 A: 2, 3, 5, 9187

Why are those the prime factors of the number 141,112,320?

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 141,112,320

141,112,320
Factor Arrows
270,556,160
Factor Arrows
235,278,080
Factor Arrows
217,639,040
Factor Arrows
28,819,520
Factor Arrows
24,409,760
Factor Arrows
22,204,880
Factor Arrows
21,102,440
Factor Arrows
2551,220
Factor Arrows
2275,610
Factor Arrows
2137,805
Factor Arrows
345,935
Factor Arrows
59,187

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, 9187

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 3 x 5 x 9,187 = 141,112,320

This can also be written as 210 x 31 x 51 x 9,1871 = 141,112,320

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


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