Cody

# Problem 44385. Extra safe primes

Solution 1676439

Submitted on 19 Nov 2018 by Daniel Moran
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### Test Suite

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

-0.7500

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

0.5000

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

1 3

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

2 5 tf = logical 1

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

3

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

5 11 tf = logical 1

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

17 35

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

179 359 tf = logical 1

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

509 1019 tf = logical 1

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

509.2500

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

1451 2903 tf = logical 1