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Calculate the number 3939

NUMBERMANIA: Calculate the number 3939 using numbers [1, 4, 6, 6, 13, 989] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 13

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

#brainteasers #math #numbermania

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Sheng Wang: Toilet With No Water

I took a dump in a toilet with no water. I had to tell my friends, Yeah, I dropped the kids off at the skate park.

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Georg Frobenius

Died 3 Aug 1917 at age 67 (born 26 Oct 1849).Ferdinand Georg Frobenius was a German mathematician who made major contributions to group theory, especially the concept of abstract groups (with Ludwig Stickleberger) and the theory of finite groups of linear substitutions (with Issai Schur), that later found important uses in the theory of finite groups as it applies to quantum mechanics. He also contributed to means of solving linear homogenous differential equations. The fact so many of Frobenius's papers read like present day text-books on the topics which he studied is a clear indication of the importance that his work, in many different areas, has had in shaping the mathematics which is studied today.

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