Q: What are the prime factors of the number 144,661,347?

 A: 3, 17, 47, 20117

Why are those the prime factors of the number 144,661,347?

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 144,661,347

144,661,347
Factor Arrows
348,220,449
Factor Arrows
316,073,483
Factor Arrows
17945,499
Factor Arrows
4720,117

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, 17, 47, 20117

We can check our work by multiplying all of the prime factors together: 3 x 3 x 17 x 47 x 20,117 = 144,661,347

This can also be written as 32 x 171 x 471 x 20,1171 = 144,661,347

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


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