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Nullbyte
Any quicker way to check if multiple pairs of (x, y) are possible for equation 1?
Seems like a pretty laborious task to check for multiple values of (x or y) and see if the equation holds.

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­check for factors 218 = 2*109. Since 109 is a prime number(no combinations of 7,27 would add except) and can comprise only 3*27 = 81 & 28(multiple of 7)
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