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Calculate the number 2641

NUMBERMANIA: Calculate the number 2641 using numbers [8, 7, 2, 3, 95, 399] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 25

The first user who solved this task is Thinh Ddh.

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The Stormy Sea

As the storm raged, the captain realized his ship was sinking fast. He called out, "Anyone here know how to pray?" One man stepped forward. "Aye, Captain, I know how to pray."

"Good," said the captain, "You pray while the rest of us put on our life jackets. We're one short."

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Moon craters

In 1610, Galileo dated his first letter describing telescopic observations in which he saw the moon's cratered surface using his twenty-powered spyglass. He wrote, “... it is seen that the Moon is most evidently not at all of an even, smooth, and regular surface, as a great many people believe of it and of the other heavenly bodies, but on the contrary it is rough and unequal. In short it is shown to be such that sane reasoning cannot conclude otherwise than that it is full of prominences and cavities similar, but much larger, to the mountains and valleys spread over the Earth's surface.” Galileo went on to describe the phenomena in considerable detail, rehearsing, as it were, the observations and conclusions he was to publish more elaborately a few months later in Sidereus Nuncius.[Image: picture of the ragged moon from Sidereus Nuncius.]

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