Why not play with mod? See what it does? Lets see what we can do.
K = 1:10;
Now, pick some number that we want to use to test for divisibility.
p = 3;
So, which elements of K will P divide exactly? We would expect 3, 6, and 9 for this vector of integers K and divisor P. So if you understand how mod works, what does this tell you?
mod(K,p)
ans =
1 2 0 1 2 0 1 2 0 1
find(mod(K,p) == 0)
ans =
3 6 9
So when mod(K,p) is zero, that tells us that p divides K, or the corresponding element thereof for vector K.
Similarly, does 17 divide 34?
mod(34,17)
ans =
0
Yes, it does. But not 35.
mod(35,17)
ans =
1
As far as your assignment goes, you need to spend some time working it out. But this should get you started.
