Cody

Problem 981. Find nearest prime number less than input number

Solution 1814628

Submitted on 14 May 2019 by Joanne Marsh
This solution is locked. To view this solution, you need to provide a solution of the same size or smaller.

Test Suite

Test Status Code Input and Output
1   Pass
n = 127; y_correct = 113; assert(isequal(minorprime(n),y_correct))

y = 113

2   Pass
n = 125; y_correct = 113; assert(isequal(minorprime(n),y_correct))

y = 113

3   Pass
n = 3; y_correct = 2; assert(isequal(minorprime(n),y_correct))

y = 2

4   Pass
n = 2; y_correct = []; assert(isequal(minorprime(n),y_correct))

y = []

5   Pass
n = 1328; y_correct = 1327; assert(isequal(minorprime(n),y_correct))

y = 1327

6   Pass
n = 5050109; y_correct = 5050099; assert(isequal(minorprime(n),y_correct))

y = 5050099

7   Pass
pn = primes(1e6); ind = max(100,floor(numel(pn)*rand)); n = pn(ind) - 1; y_correct = pn(ind - 1); assert(isequal(minorprime(n),y_correct))

y = 562633