Problem 2910. Mersenne Primes vs. All Primes

Solution 1814776

Submitted on 14 May 2019 by Joanne Marsh

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Test	Status	Code Input and Output
1	Pass	n = 1e2; y_correct = 3; f_correct = 3/25; [y,f] = Mersenne_prime_comp(n); assert(isequal(y,y_correct)) assert(isequal(f,f_correct)) f = 0.1200
2	Pass	n = 1e3; y_correct = 4; f_correct = 0.023809523809524; [y,f] = Mersenne_prime_comp(n); assert(isequal(y,y_correct)) assert(abs(f-f_correct)<(10*eps)) f = 0.0238
3	Pass	n = 1e4; y_correct = 5; f_correct = 0.004068348250610; [y,f] = Mersenne_prime_comp(n); assert(isequal(y,y_correct)) assert(abs(f-f_correct)<(10*eps)) f = 0.0041
4	Pass	n = 1e5; y_correct = 5; f_correct = 5.212677231025855e-04; [y,f] = Mersenne_prime_comp(n); assert(isequal(y,y_correct)) assert(abs(f-f_correct)<(10*eps)) f = 5.2127e-04
5	Pass	n = 1e6; y_correct = 7; f_correct = 8.917424647761727e-05; [y,f] = Mersenne_prime_comp(n); assert(isequal(y,y_correct)) assert(abs(f-f_correct)<(10*eps)) f = 8.9174e-05