Q: What are the prime factors of the number 141,101,568?

 A: 2, 3, 59, 173

Why are those the prime factors of the number 141,101,568?

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 141,101,568

141,101,568
Factor Arrows
270,550,784
Factor Arrows
235,275,392
Factor Arrows
217,637,696
Factor Arrows
28,818,848
Factor Arrows
24,409,424
Factor Arrows
22,204,712
Factor Arrows
21,102,356
Factor Arrows
2551,178
Factor Arrows
2275,589
Factor Arrows
391,863
Factor Arrows
330,621
Factor Arrows
310,207
Factor Arrows
59173

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, 59, 173

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 2 x 2 x 2 x 3 x 3 x 3 x 59 x 173 = 141,101,568

This can also be written as 29 x 33 x 591 x 1731 = 141,101,568

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


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