Q: What are the prime factors of the number 166,346,775?

 A: 3, 5, 7, 31, 3407

Why are those the prime factors of the number 166,346,775?

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 166,346,775

166,346,775
Factor Arrows
355,448,925
Factor Arrows
318,482,975
Factor Arrows
53,696,595
Factor Arrows
5739,319
Factor Arrows
7105,617
Factor Arrows
313,407

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:

3, 5, 7, 31, 3407

We can check our work by multiplying all of the prime factors together: 3 x 3 x 5 x 5 x 7 x 31 x 3,407 = 166,346,775

This can also be written as 32 x 52 x 71 x 311 x 3,4071 = 166,346,775

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


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