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The mathematicians of ancient Greece attributed characters to numbers and awarded some of the status of perfection. For Euclid, one of the finding fathers of modern mathematics, a perfect number was one that equaled the sum of its own divisors – that is numbers that will divide into it without leaving a remainder. The first perfect number is 6: its divisors are 1, 2, and 3, 14 which add up to 6. The second is 28 (1 + two + four + seven + 14). The Greeks knew only two other perfect: 496 and 8,128.

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Anybody having difficulty with squares and square roots? Your guide awaits.

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A paper on the ancient Mayan and Babylonian number systems.

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Use and forms of rocks and stones.

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If all the inhabitants of our blue planet were to be weighed, one would obtain a figure approximating 200 million tons. The scientists pretend that this represents with much difficulty one tenth of the total weight of all the insects living on Earth. How many insects exist?

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Origins and facts about the numbers one to five.

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The number system most computers like to use.

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Tips on how to memorize pi digits for all occasions.

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2012. The end of the world, or the end of a world? And is it related to the number 23?

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The real number system is a very complicated . It states that there is a lot of numbers, like a farmer has two sheep so he has +2 sheep but, if he owed someone 2 sheep he would have -2 sheep. There are different sections of the number system.