Q: What are the prime factors of the number 116,554,725?

 A: 3, 5, 7, 43, 1721

Why are those the prime factors of the number 116,554,725?

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 116,554,725

116,554,725
Factor Arrows
338,851,575
Factor Arrows
312,950,525
Factor Arrows
52,590,105
Factor Arrows
5518,021
Factor Arrows
774,003
Factor Arrows
431,721

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, 43, 1721

We can check our work by multiplying all of the prime factors together: 3 x 3 x 5 x 5 x 7 x 43 x 1,721 = 116,554,725

This can also be written as 32 x 52 x 71 x 431 x 1,7211 = 116,554,725

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


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