Problem 525. Mersenne Primes

Solution 2026331

Submitted on 18 Nov 2019 at 11:46

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Test	Status	Code Input and Output
1	Pass	x = 3; y_correct = true; assert(isequal(isMersenne(x),y_correct)) p = 2 y = 1
2	Pass	x = 127; y_correct = true; assert(isequal(isMersenne(x),y_correct)) p = 7 y = 1
3	Fail	x = 157; y_correct = false; assert(isequal(isMersenne(x),y_correct)) p = 7.3038 Error using isprime (line 19) All entries of X must be nonnegative integers. Error in isMersenne (line 3) if isprime(p)==1 & isprime(x)==1 Error in Test3 (line 3) assert(isequal(isMersenne(x),y_correct))
4	Pass	x = 2047; y_correct = false; assert(isequal(isMersenne(x),y_correct)) p = 11 y = 0
5	Pass	x = 8191; y_correct = true; assert(isequal(isMersenne(x),y_correct)) p = 13 y = 1
6	Pass	x = 524287; y_correct = true; assert(isequal(isMersenne(x),y_correct)) p = 19 y = 1
7	Pass	x = 536870911; y_correct = false; assert(isequal(isMersenne(x),y_correct)) p = 29 y = 0