other Exam Numerical Ability

Find the sum of all prime numbers that divide the greatest common divisor of the numbers

(63^2-4)71 and (961^2+364)

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other Other Question

What is the largest integer value of n which makes n^7+1 divisible by n+7 ?



find sum of a+b+c+d if:

a+3b+3d =6160

6a+2b = 7680

12c+3d = 8820