Q: What are the prime factors of the number 171,626,202?

 A: 2, 3, 11, 19, 37, 137

Why are those the prime factors of the number 171,626,202?

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 171,626,202

171,626,202
Factor Arrows
285,813,101
Factor Arrows
328,604,367
Factor Arrows
39,534,789
Factor Arrows
33,178,263
Factor Arrows
31,059,421
Factor Arrows
1196,311
Factor Arrows
195,069
Factor Arrows
37137

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, 11, 19, 37, 137

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 3 x 11 x 19 x 37 x 137 = 171,626,202

This can also be written as 21 x 34 x 111 x 191 x 371 x 1371 = 171,626,202

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


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