Q: What are the prime factors of the number 141,556,000?

 A: 2, 5, 43, 823

Why are those the prime factors of the number 141,556,000?

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 141,556,000

141,556,000
Factor Arrows
270,778,000
Factor Arrows
235,389,000
Factor Arrows
217,694,500
Factor Arrows
28,847,250
Factor Arrows
24,423,625
Factor Arrows
5884,725
Factor Arrows
5176,945
Factor Arrows
535,389
Factor Arrows
43823

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, 43, 823

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 5 x 5 x 5 x 43 x 823 = 141,556,000

This can also be written as 25 x 53 x 431 x 8231 = 141,556,000

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


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