amais;ce sont des problèmes et non pas des exercices 但; 他们是而不是问题锻炼 [translate] asave the lawn 保存草坪 [translate] aHello! Mooie vrouw!" Hahahahaha ga weg ? 你好! 美丽的妇女! Hahahahaha事假? [translate] aDo you play basketball? 您是否打篮球? [translate] aWhy don't you...
In 1859, Lebesgue stated explicitly that 1 is prime in Exercices d’sanalyse numérique [Udai Venedem]. In 1866, Primary Elements of Algebra for Common Schools and Academies by Joseph Ray has: All numbers are either prime or composite; and every composite number is the product of two or ...