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Ujjawal
If the product of two positive integers is 507, and the least common multiple of them is 39, what is the sum of the two positive integers?
xy=507 ax=by=39 from 1º equation: x=507/y into 2º: 507a/y=by=39 rearange and solve for y
try writing 507 and 39 as a product of prime numbers - that will help you get to the answer