SOLUTION: This is my assignment: Mathematicians have been searching for a formula that yields prime numbers. One such formula is x^2-x+41. Select some numbers for x, substitute them in the

Question 149159: This is my assignment:
Mathematicians have been searching for a formula that yields prime numbers. One such formula is x^2-x+41. Select some numbers for x, substitute them in the formula and see if prime numbers occur. Try to fnd a number for x that when substituted in the formula yields a composite number.
Please help. Thanks!
Answer by oscargut(2103) (Show Source): You can put this solution on YOUR website!
f(x)=x^2-x+41
if x=1 then f(1)=41 (prime)
if x=2 then f(2)=43 (prime)
if x=3 then f(3)=47 (prime)
if x=4 then f(4)=53 (prime)
but if x=41 f(41)=41^2 (composite)
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