Q: What are the prime factors of the number 178,886,925?

 A: 3, 5, 7, 53, 2143

Why are those the prime factors of the number 178,886,925?

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 178,886,925

178,886,925
Factor Arrows
359,628,975
Factor Arrows
319,876,325
Factor Arrows
53,975,265
Factor Arrows
5795,053
Factor Arrows
7113,579
Factor Arrows
532,143

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, 53, 2143

We can check our work by multiplying all of the prime factors together: 3 x 3 x 5 x 5 x 7 x 53 x 2,143 = 178,886,925

This can also be written as 32 x 52 x 71 x 531 x 2,1431 = 178,886,925

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


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