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Calculate the number 666

NUMBERMANIA: Calculate the number 666 using numbers [9, 1, 5, 3, 89, 497] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 11

The first user who solved this task is Nasrin 24 T.

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John Thorp

Died 15 Nov 1848 (born 1784).American inventor of the ring spinning machine (1828), which by the 1860s had largely replaced Samuel Crompton's spinning mule in the world's textile mills because of its greater productivity and simplicity. The ring frame is a continuous spinner, which spins yarn and winds it onto bobbins in one motion, while the mule was a discontinuous spinner, first spinning a length of yarn and then winding that length onto bobbins separately. In ring spinning, a "c"-ring travels at a high speed around a grooved circular raceway mounted on a plate, which in turn travels up and down the spinning bobbin.

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