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The sum of two positive integers is 2310. Can their product be divisible by 2310?

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The sum of two positive integers is 2310. Can their product be divisible by 2310?
posted May 17, 2019 by anonymous

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1 Answer

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No is the answer


Given: a+b=2310
Let a*b divisible by 2310: a*b=2310*k.
2310 is made up of 5 different primes: 2310=2*3*5*7*11. a*b=2*3*5*7*11*k. If k ≥ 2, then a+b = a*b ≥ 2*2310. It means contradiction and it is not possible to have 2310 ≥ 2310 * 2.

answer May 18, 2019 by Hanifa Mammadov
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