I came across an apparently random 14-digit number which turned out to be quite interesting: 65359477124183. If you multiply it by 17, you get 1111111111111111. If you are one of those people whose minds close down when face with numbers, please stay with me because it gets even more fascinating. Let’s multiply the original figure by 34 (that’s 17×2), then 51 (17×3) and so on. This is what you get: