Q: What are the prime factors of the number 47,435,661?

 A: 3, 7, 13, 17, 3407

Why are those the prime factors of the number 47,435,661?

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 47,435,661

47,435,661
Factor Arrows
315,811,887
Factor Arrows
35,270,629
Factor Arrows
7752,947
Factor Arrows
1357,919
Factor Arrows
173,407

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, 7, 13, 17, 3407

We can check our work by multiplying all of the prime factors together: 3 x 3 x 7 x 13 x 17 x 3,407 = 47,435,661

This can also be written as 32 x 71 x 131 x 171 x 3,4071 = 47,435,661

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


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