Q: What are the prime factors of the number 145,750,272?

 A: 2, 3, 101, 1879

Why are those the prime factors of the number 145,750,272?

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 145,750,272

145,750,272
Factor Arrows
272,875,136
Factor Arrows
236,437,568
Factor Arrows
218,218,784
Factor Arrows
29,109,392
Factor Arrows
24,554,696
Factor Arrows
22,277,348
Factor Arrows
21,138,674
Factor Arrows
2569,337
Factor Arrows
3189,779
Factor Arrows
1011,879

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, 101, 1879

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 3 x 101 x 1,879 = 145,750,272

This can also be written as 28 x 31 x 1011 x 1,8791 = 145,750,272

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


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