Q: What are the prime factors of the number 145,562,568?

 A: 2, 3, 17, 43, 8297

Why are those the prime factors of the number 145,562,568?

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 145,562,568

145,562,568
Factor Arrows
272,781,284
Factor Arrows
236,390,642
Factor Arrows
218,195,321
Factor Arrows
36,065,107
Factor Arrows
17356,771
Factor Arrows
438,297

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, 17, 43, 8297

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 17 x 43 x 8,297 = 145,562,568

This can also be written as 23 x 31 x 171 x 431 x 8,2971 = 145,562,568

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


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