Problem $2$: For Loops and While Loop

a$)$ Write a MATLAB script that uses a 'for$`$ loop to calculate the sum of the first $10$ even numbers.

b$)$ Write a MATLAB script that uses a "while" loop to find the smallest positive integer $n$ such that $n^2+n+41$ is not prime. Display both $n$ and the value of $n^2+n+41.$