Q: What are the prime factors of the number 162,340,308?

 A: 2, 3, 13, 43, 2689

Why are those the prime factors of the number 162,340,308?

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 162,340,308

162,340,308
Factor Arrows
281,170,154
Factor Arrows
240,585,077
Factor Arrows
313,528,359
Factor Arrows
34,509,453
Factor Arrows
31,503,151
Factor Arrows
13115,627
Factor Arrows
432,689

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, 13, 43, 2689

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 3 x 13 x 43 x 2,689 = 162,340,308

This can also be written as 22 x 33 x 131 x 431 x 2,6891 = 162,340,308

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


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