Question Number 121188 by mathocean1 last updated on 05/Nov/20
![N is written 158b687a in base 10. with a<b. show that N≡2+a[4]](https://www.tinkutara.com/question/Q121188.png)
$${N}\:{is}\:{written}\:\mathrm{158}{b}\mathrm{687}{a}\:{in}\:{base}\:\mathrm{10}. \\ $$$${with}\:\:{a}<{b}. \\ $$$${show}\:{that}\:{N}\equiv\mathrm{2}+{a}\left[\mathrm{4}\right] \\ $$