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# Calculate the number 2543

NUMBERMANIA: Calculate the number 2543 using numbers [3, 4, 3, 1, 57, 415] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
The first user who solved this task is H Tav.
#brainteasers #math #numbermania
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### Six months to live...

"Mr. Clark, I'm afraid I have bad news," the doctor told his anxious patient. "You only have six months to live."

The man sat in stunned silence for the next several minutes. Regaining his composure, he apologetically told his physician that he had no medical insurance. "I can't possibly pay you in that time."

"Okay," the doctor said, "let's make it nine months."

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### Pierre-Louis Dulong

Died 18 Jul 1838 at age 53 (born 12 Feb 1785).French chemist and physicist who helped formulate the Dulong-Petit law of specific heats (1819), which proved useful in determining atomic weights. He began in a medical career, but turned to botany and then chemistry. In 1811, he discovered nitrogen trichloride, losing a finger and the sight of one eye when it spontaneously exploded. Jointly with Alexis Petit (1815-20), they measured the specific heat of elements and related them to atomic weights. They discovered their new law that specific heat times atomic weight of an element is a constant, about six calories per gram atom, the same for all solid elements.«
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