I don't know if Canadian banknotes always only have 7 numbers in their serials, in which case a repeater is impossible. But if you do get a repeater like 31453145, it can be worth keeping. Doubles repeater even better, like 33553355.
Disclaimer: While a tremendous amount of effort goes into ensuring the accuracy of the information contained in this site, Coin Community assumes no liability for errors. Copyright 2005 - 2026 Coin Community Family- all rights reserved worldwide. Use of any images or content on this website without prior written permission of Coin Community or the original lender is strictly prohibited. Contact Us | Advertise Here | Privacy Policy / Terms of Use