Problem 266: Pseudo Square Root

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The divisors of 12 are: 1,2,3,4,6 and 12.

The largest divisor of 12 that does not exceed the square root of 12 is 3.

We shall call the largest divisor of an integer n that does not exceed the square root of n the pseudo square root (PSR) of n.

It can be seen that PSR(3102)=47.

Let p be the product of the primes below 190. Find PSR(p) mod 1016.

Test

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