Sometimes a very simple question in elementary arithmetic will cause a good deal of perplexity. For example, I want to divide the four numbers, $701,$ $1,059,$ $1,417,$ and $2,312,$ by the largest number possible that will leave the same remainder in every case. How am I to set to work?
Of course, by a laborious system of trial one can in time discover the answer, but there is quite a simple method of doing it if you can only find it.
This eBook is for the use of anyone anywhere in the United States and most other parts of the world at no cost and with almost no restrictions whatsoever. You may copy it, give it away or re-use it under the terms of the Project Gutenberg License included with this edition or online at http://www.gutenberg.org. If you are not located in the United States, you'll have to check the laws of the country where you are located before using this ebook.