Q: What are the prime factors of the number 163,282,512?

 A: 2, 3, 47, 157, 461

Why are those the prime factors of the number 163,282,512?

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 163,282,512

163,282,512
Factor Arrows
281,641,256
Factor Arrows
240,820,628
Factor Arrows
220,410,314
Factor Arrows
210,205,157
Factor Arrows
33,401,719
Factor Arrows
4772,377
Factor Arrows
157461

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, 47, 157, 461

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 47 x 157 x 461 = 163,282,512

This can also be written as 24 x 31 x 471 x 1571 x 4611 = 163,282,512

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


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