Q: What are the prime factors of the number 262,705,100?

 A: 2, 5, 7, 53, 73, 97

Why are those the prime factors of the number 262,705,100?

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 262,705,100

262,705,100
Factor Arrows
2131,352,550
Factor Arrows
265,676,275
Factor Arrows
513,135,255
Factor Arrows
52,627,051
Factor Arrows
7375,293
Factor Arrows
537,081
Factor Arrows
7397

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, 5, 7, 53, 73, 97

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 5 x 7 x 53 x 73 x 97 = 262,705,100

This can also be written as 22 x 52 x 71 x 531 x 731 x 971 = 262,705,100

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


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