1·Numbers have a common factor if they are divisible by the same number, not including 1. For example, 4 and 15 have no common factors, but 12 and 15 have the common factor 3.
如果几个数字都能被同一个整数(不包括1)整除，我们就说这几个数字拥有一个公约数，例如，4和15就没有公约数，但12和15有公约数3。
2·The number 17, for example, is prime, because it is divisible only by 1 and 17.
例如17就是质数，因为它只能被1和17整除。
3·JANE STREET CAPITAL: "What is the smallest number divisible by 225 that consists of all 1s and 0s?"
简街资本：能被225整除，只包含0和1的最小的数字是多少？
4·That may be another reason why Chinese interest rates are divisible by nine: it is seen as an auspicious number.
这也许正是中国设定利率需被9除尽的另一原因：9被视为一个吉祥的数字。
5·The Kaminoans soon found they had a number of small squads, each highly-trained and fiercely-cohesive, yet divisible into smaller units for varied mission profiles.
卡米诺人很快发现他们有了许多小队，每个小队都训练有素、团结一致，而且还可以为不同的任务特点细分成更小的单位。
6·Many number systems are based on 12 because it's divisible by the most Numbers, and because you can count to 12 on one hand by using your thumb to count three knuckles on each of the other fingers.
许多数字体系都是基于12的，因为12可以被多数数字约分，还因为你可以一只手仅靠大拇指，数每个指头的指节，就能数到12。
7·The number 5, for example, when viewed among the natural, or counting, numbers is one of those elemental creatures: a prime number, divisible only by 1 and itself.
比如数字5，在自然数或计数中，它是一个基本的数字：质数，只能被1或它自身整除。
8·How to check if given number is divisible of 15 in fastest way?
如何检查，如果给定数量以最快捷的方式，可分为15 ？
9·Thirteen is not divisible by any even number.
很多人认为十三是个不吉利的数字。
10·If is the smallest cubic number divisible by 810, find the value of.
如果是可被810整除的最小立方数，求的值。