2017年1月1日 星期日
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1月
tjwei數學
Good bye year 2016. Hello year 2017.
We all know that 2017 is a prime number, but it is more than just another prime number.
2017π (rounds to nearest integer) is a prime
2017e (rounds to nearest integer ) is a prime.
The sum of all odd primes up to 2017 is a prime number, i.e. 3+5+7+11+...+2017 is a prime number.
The sum of the cube of gap...
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