Q: What are the prime factors of the number 143,718,720?

 A: 2, 3, 5, 23, 283

Why are those the prime factors of the number 143,718,720?

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 143,718,720

143,718,720
Factor Arrows
271,859,360
Factor Arrows
235,929,680
Factor Arrows
217,964,840
Factor Arrows
28,982,420
Factor Arrows
24,491,210
Factor Arrows
22,245,605
Factor Arrows
3748,535
Factor Arrows
5149,707
Factor Arrows
236,509
Factor Arrows
23283

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, 23, 283

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 3 x 5 x 23 x 23 x 283 = 143,718,720

This can also be written as 26 x 31 x 51 x 232 x 2831 = 143,718,720

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


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