Top 10 math­e­mat­ics facts

19. There was no year number zero. There were only 1999 years between 1000BC and 1000AD.

Sexagesimal. Remnants of the highly composite sexagesimal system are in use even today for time measurement and geometry. An hour of time is divided into 60 minutes, which in turn are divided into 60 seconds.

One. The Möbius strip is a surface with only one side and only one boundary component (edge). A line drawn starting from the seam down the middle will meet back at the seam but at the "other side". If continued the line will meet the starting point and will be double the length of the original strip.

By approx 6 meters. For each circle, the length of the circumference is c=2πr. Hence, if a radius grows by 1 meter, the circumference grows by 2 π meters - no matter what the initial value of radius was.

Albert Einstein. 14 of March is celebrated on many schools and universities as both Pi Day and the birthday of Albert Einstein. One of the traditions is the 'Pi Pie' (pictured).

Taxicab numbers. is defined as the smallest number that can be expressed as a sum of two positive cube numbers in n distinct ways. The name is derived from a conversation in about 1919 involving mathematicians G. H. Hardy and Srinivasa Ramanujan. Hardy has ridden in taxi-cab No. 1729, and remarked that the number seemed to be rather a dull one. Ramanujan replied that the number was very interesting, as the smallest number expressible as the sum of two cubes in two different ways.

Graham's number is an enormous number that arises as an upper bound on the answer of a problem in the mathematical field of Ramsey theory. The number was published in the 1980 Guinness Book of World Records, adding to its popular interest.

60466176. 6x6=36. And if so, then a further multiplication by six must leave the sixth in the last position. The subsequent powers of the six are 6, 36, 216, 1296, 7776, 46656 ...

5050. 1+2+...+99+100 = 1+100+2+99+...+50+51 = 101+101+101+...+101 = 101*50 = 5050 It's a calculation method invented by Gauss.

To estimate total tanks production. The allies found out, that the gearbox numbers fell in two unbroken sequences, so large production resulted in influx of large serial numbers. Today, the problem of estimating the maximum of a discrete uniform distribution from sampling without replacement, is known - in the English-speaking world - as the German tank problem.