Interesting facts about the number 100
100 is the sum of the first nine prime numbers, as well as the sum of two prime numbers (47 + 53), and the sum of the cubes of the first four integers (100 = 1^3 + 2^3 + 3^3 + 4^3). Also, 2^6 + 6^2 = 100
Random fact about pi
The billionth digit of pi is 9
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Really cool math fact
111,111,111 x 111,111,111 = 12,345,678,987,654,321
Where was zero first treated as a number?
Indian mathematicians were the first to treat zero as a number in its own right. In 628 CE, the mathematician Brahmagupta wrote down rules for calculating with it.