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Pythagoras' Constant is the square root of two.

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You've probably heard of the Pythagorean Theorem from 10th grade geometry class, but have you heard of Pythagoras' Constant? So, here's the skinny: Pythagoras' Constant is the square root of 2 (1.41). It's also the first irrational number ever discovered.

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The only number that cannot be represented in Roman numerals is zero.

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Fun Fact! Roman Numerals Were Invented as a Trading System

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Fun Fact! There is just one number that is spelled with the same number of letters as the number itself.

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Fun Fact! The number six is the smallest perfect number.

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Fun Fact! The Number 9 Is Considered a "Magic" Number

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Fun Fact! The number one is not a prime number.

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Fun Fact! If a pizza has a radius of "Z" and a height of "A," the equation is

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Fun Fact! When you multiply ones, you will always get palindromic numbers.

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Fun Fact! A cake may be sliced into 8 equal pieces with only three slices.