Q: What are the prime factors of the number 144,855?

 A: 3, 5, 29, 37

Why are those the prime factors of the number 144,855?

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 144,855

144,855
Factor Arrows
348,285
Factor Arrows
316,095
Factor Arrows
35,365
Factor Arrows
51,073
Factor Arrows
2937

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:

3, 5, 29, 37

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 5 x 29 x 37 = 144,855

This can also be written as 33 x 51 x 291 x 371 = 144,855

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


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