Question 304917
x=1: 1^2-1+41=41....prime


x=5: 5^2-5+41=61....prime


x=10: 10^2-10+41=131... prime


x=20: 20^2-20+41=421...prime


x=40: 40^2-40+41=1601...prime


x=41: 41^2-41+41=1681...composite


x=42: 42^2-42+41=1763...composite


x=45: 45^2-45+41=2021...composite


Any non-negative number less than 41 yields a prime number