Q: What are the prime factors of the number 163,420,336?

 A: 2, 23, 29, 15313

Why are those the prime factors of the number 163,420,336?

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 163,420,336

163,420,336
Factor Arrows
281,710,168
Factor Arrows
240,855,084
Factor Arrows
220,427,542
Factor Arrows
210,213,771
Factor Arrows
23444,077
Factor Arrows
2915,313

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, 23, 29, 15313

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 23 x 29 x 15,313 = 163,420,336

This can also be written as 24 x 231 x 291 x 15,3131 = 163,420,336

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


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