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What is the Largest prime factor of 2²+3²+5² ?
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4 votes
What is the Largest prime factor of 2²+3²+5² ?

User Igor Gladun
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2 Answers

5 votes
It would be 19 since it is also the largest factor of 4+9+25. It is also a prime number so that is the answer.
User Aadith Ramia
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8.5k points
4 votes

It looks like 19 would be.

I don't know any slick way to find it, other than just slugging it out.
User Pete Fordham
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