从一至二十中挑选一个数。
找到一个数的因子的实质是什么?
What is the essence of the problem of discovering factors of a number?
我得到了一个数,我想要找到。
Three plus five. I can take something to a power, double star, just take three to the fifth power.
+5,我也可以,求一个数的次方,例如求3的5次方。
So if I wanted to represent, for example, this is the set two, six and eight, I put a one in those slots.
所以如果我想表示的话,比如,这是2,6,8的集合,我放置一个数在这个位置中。
So then in order to figure out the complete number of valence electrons in our molecule, we just add 5 plus 4 plus 1.
那么接下来为了得到,这个分子中价电子的总个数,我们只需要将五加上四,再加上一。
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