Q: What are the prime factors of the number 177,470,622?

 A: 2, 3, 7, 23, 137, 149

Why are those the prime factors of the number 177,470,622?

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 177,470,622

177,470,622
Factor Arrows
288,735,311
Factor Arrows
329,578,437
Factor Arrows
39,859,479
Factor Arrows
33,286,493
Factor Arrows
7469,499
Factor Arrows
2320,413
Factor Arrows
137149

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, 7, 23, 137, 149

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 7 x 23 x 137 x 149 = 177,470,622

This can also be written as 21 x 33 x 71 x 231 x 1371 x 1491 = 177,470,622

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


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