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Problem 44385. Extra safe primes

Solution 1446359

Submitted on 22 Feb 2018 by John D'Errico
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Test Suite

Test Status Code Input and Output
1   Pass
x = 0; assert(isequal(isextrasafe(x),false))

ans = logical 0
2   Pass
x = 5; assert(isequal(isextrasafe(x),false))

ans = logical 0
3   Pass
x = 7; assert(isequal(isextrasafe(x),false))

ans = logical 0
4   Pass
x = 11; assert(isequal(isextrasafe(x),true))

ans = logical 1
5   Pass
x = 15; assert(isequal(isextrasafe(x),false))

ans = logical 0
6   Pass
x = 23; assert(isequal(isextrasafe(x),true))

ans = logical 1
7   Pass
x = 71; assert(isequal(isextrasafe(x),false))

ans = logical 0
8   Pass
x = 719; assert(isequal(isextrasafe(x),true))

ans = logical 1
9   Pass
x = 2039; assert(isequal(isextrasafe(x),true))

ans = logical 1
10   Pass
x = 2040; assert(isequal(isextrasafe(x),false))

ans = logical 0
11   Pass
x = 5807; assert(isequal(isextrasafe(x),true))

ans = logical 1

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