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For many years mathematicians tried to find a formula to generate prime numbers. One candidate was the expression n2 + n + 41, where n is a positive integer. Try at least 3 or 4 numbers. What do you think of the formula? Does it work? Could you prove it? Homework Help ✎

Try 1, 2, 3 and 4. Does it work?

Try 41. Does it work?