Q: What are the prime factors of the number 143,424?

 A: 2, 3, 83

Why are those the prime factors of the number 143,424?

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 143,424

143,424
Factor Arrows
271,712
Factor Arrows
235,856
Factor Arrows
217,928
Factor Arrows
28,964
Factor Arrows
24,482
Factor Arrows
22,241
Factor Arrows
3747
Factor Arrows
3249
Factor Arrows
383

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, 83

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 3 x 3 x 83 = 143,424

This can also be written as 26 x 33 x 831 = 143,424

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


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