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Calculate the number 1609

NUMBERMANIA: Calculate the number 1609 using numbers [8, 4, 6, 1, 43, 789] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 0

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Henry Oldenburg

Died 5 Sep 1677 (born c. 1618). German-British Secretary of the Royal Society who came to England as a diplomat to see Oliver Cromwell, but stayed instead of returning to Germany. From 1662 he served as the Secretary of the Royal Society, London. His extensive correspondence, and the Philosophical Transactions of the Royal Society journal he founded and editted, spread information on the intellectual activity of the scientists of the Society. Among others, he encouraged Newton, Flamsteed, Malpighi, and Leeuwenhoek.

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