  MATLAB is a numerical computing platform used by scientists, engineers,
mathematicians, and students which contains many mathematical functions,
including isprime. MATLAB's isprime function determines which elements of an
input array are prime. This research details modular arithmetic techniques, the
Miller-Rabin primality test, vectorized operations, and division-minimizing
strategies which harness the power of MATLAB's capabilities to improve
isprime's performance. The results are typically 5 to 10 times faster for small
integers and many hundreds of times faster for large integers and long arrays.
