Q: What are the prime factors of the number 143,166,736?

 A: 2, 29, 239, 1291

Why are those the prime factors of the number 143,166,736?

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 143,166,736

143,166,736
Factor Arrows
271,583,368
Factor Arrows
235,791,684
Factor Arrows
217,895,842
Factor Arrows
28,947,921
Factor Arrows
29308,549
Factor Arrows
2391,291

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, 29, 239, 1291

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 29 x 239 x 1,291 = 143,166,736

This can also be written as 24 x 291 x 2391 x 1,2911 = 143,166,736

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


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