Q: What are the prime factors of the number 45,471,153?

 A: 3, 7, 13, 166561

Why are those the prime factors of the number 45,471,153?

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 45,471,153

45,471,153
Factor Arrows
315,157,051
Factor Arrows
72,165,293
Factor Arrows
13166,561

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, 7, 13, 166561

We can check our work by multiplying all of the prime factors together: 3 x 7 x 13 x 166,561 = 45,471,153

This can also be written as 31 x 71 x 131 x 166,5611 = 45,471,153

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


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