Q: What are the prime factors of the number 176,201,520?

 A: 2, 3, 5, 11, 31, 2153

Why are those the prime factors of the number 176,201,520?

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 176,201,520

176,201,520
Factor Arrows
288,100,760
Factor Arrows
244,050,380
Factor Arrows
222,025,190
Factor Arrows
211,012,595
Factor Arrows
33,670,865
Factor Arrows
5734,173
Factor Arrows
1166,743
Factor Arrows
312,153

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, 5, 11, 31, 2153

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 5 x 11 x 31 x 2,153 = 176,201,520

This can also be written as 24 x 31 x 51 x 111 x 311 x 2,1531 = 176,201,520

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


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