Q: What are the prime factors of the number 137,346,688?

 A: 2, 131, 8191

Why are those the prime factors of the number 137,346,688?

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 137,346,688

137,346,688
Factor Arrows
268,673,344
Factor Arrows
234,336,672
Factor Arrows
217,168,336
Factor Arrows
28,584,168
Factor Arrows
24,292,084
Factor Arrows
22,146,042
Factor Arrows
21,073,021
Factor Arrows
1318,191

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, 131, 8191

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 131 x 8,191 = 137,346,688

This can also be written as 27 x 1311 x 8,1911 = 137,346,688

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


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