positive prime

The re-post of Trudeau's feat of core strength has been shared more than 4500 times, giving Canadians another reason to express their mostly positive feelings for the handsome, well-liked prime minister who champions himself a feminist and who is a staunch advocate for LGBTQ rights.

这张展示特鲁多强大肌肉力量的照片被转发了4500多次，加拿大人又有理由表达他们对总理的爱了。因为特鲁多不仅英俊潇洒、人见人爱，而且还是一个女权主义者，一个坚定的多元性取向群体权利的支持者。

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The Relationship between Prime and Composite Number as well Positive Integer being a Condition of Prime Number

素数与复合数的关系、正整数是素数的条件

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In this paper, it is proved that there is an infinite arithmetic progression of positive even numbers each of which is prime to 3, and has no representation of the form p+ 3~ k.

证明了如下定理：存在一个正偶整数的无穷算术数列，其中每一项都与3互素且不能表为p+3k形式。

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