微積分Calculus 網頁Web		數學諾貝爾獎 Math Nobel Prize
	Old 網頁WebPage		Wolfram Research

	阿貝爾獎 Abel Prize 1 2 3		單位換算 Conversion
	數學傳播MATHMEDIA		2020 Math Subject Classification

	數學知識 EPISTE MATH		美仙女質數 MersennePrimes Largest Known Primes , 51th Mersenne Prime
			New record prime (GIMPS): 282,589,933-1 with 24,862,048 digits by P. Laroche, G. Woltman, A. Blosser, et al.(7 Dec 2018).

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