In three dimensions, the kissing number is 12, because 12 non-overlapping unit spheres can be put into contact with a central unit sphere.

(Here, the centers of outer spheres form the vertices of a regular icosahedron.) Kissing numbers are only known exactly in dimensions 1, 2, 3, 4, 8 and 24.

Does your head start spinning at the mere sight of equations and calculators?

Imagine trying to solve the hardest problem of mathematics in the world.

If what you wanted was a ridiculously long string of letters, how about this?

If you want to be a millionaire, there are easy ways and there are hard ways to achieve your goal.It is stated as: Fermat's theorem or Fermat's Last Theorem as it is known, was put forward by Pierre de Fermat in 1637.After several years of many mathematicians, trying to prove the theorem, it was solved after more than three hundred years in 1995. While this theorem was proved for the integer case n=4 before Fermat's theorem was proposed, over the next two hundred years, the theorem was proven for the prime numbers 3, 5, and 7.In fact, the theorem was scrawled on the margins of one of his books and found later by his son.Along with the yet unproven Riemann's hypothesis, Fermat's last theorem is without doubt the hardest math problem in the world.There are some problems that have baffled the best of the mathematicians in the world.Growing up, most of my friends (and me) suffered from an illogical fear of numbers, equations, right angles, and the entire conundrum of a subject that is mathematics.There are two maths problems in the world that have received a lot of recognition and attention because they have remained unsolved for several years.While Riemann's Hypothesis still remains unsolved, Fermat's theorem which is one of the hardest math problems in the world, was solved only in 1995.and all non-trivial zeros were symmetric where the line Re(s) = ½.This led him to put forward the hypothesis that all non-trivial zeros are on the line Re(s) = ½.

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