Test #5 x = 15;
15 = 2*7 + 1
7 = 2*3 + 1
3 is a prime number. therefore 7 is a safe prime. AND 15 is an extra safe prime. Or is there anything wrong with the equations above?
Lol. Forgot that 15 is not even a prime number.
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 | Fail |
x = 15;
assert(isequal(isextrasafe(x),false))
ans =
logical
1
|
6 | Pass |
x = 23;
assert(isequal(isextrasafe(x),true))
ans =
logical
1
|
7 | Fail |
x = 71;
assert(isequal(isextrasafe(x),false))
ans =
logical
1
|
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 | Fail |
x = 2040;
assert(isequal(isextrasafe(x),false))
|
11 | Pass |
x = 5807;
assert(isequal(isextrasafe(x),true))
ans =
logical
1
|
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