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Calculate product...

Calculate product of four consecutive prime numbers with the sum of 220.

Correct answers: 53

The first user who solved this task is Sanja Šabović.

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Synthetic quinine

In 1944, the first synthetic quinine was produced by Dr. Robert Burns Woodward (on his birthday) and Dr. William von Eggers Doering at the Converse Memorial Laboratory, Harvard University, Cambridge, Mass. Quinine, an anti-malarial drug, is an organic chemical with the formula C20H24N2O2.

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