how to get out infinite loop

this code required to calculate the smallest multiple with uint64 format bit gets stuck on argument 45. it only displays busy . can someone explain why?
function answer = smallest_multiple (N)
limit =1e15;
for i = N:N:limit
for j = N:-1:1
if mod(i,j) ~= 0
break
end
end
if j == 1
answer =uint64(i);
break
end
end

3 个评论

Why do you assume it is an infinite loop? It seems to just be very slow. Looping up to 1e15 isn't going to be especially fast.
anything smaller than that comes back with the result ' output argument "answer" ( and maybe others) not assigned during call to "smallest_multiple" . but it doesn't do that with output argument up to 30. then it gives the error
You break out of your loop if i is not divisible by j at any point; this means answer is not assigned in many loop iterations. This is probably not what you want to do here.

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