ⴷⴰ ⵙⵙⵎⵔⴰⵙⵏⵜ ⴰⵍⴳⵓⵔⵉⵜⵎ Lehmer's GCD, ⴰⵎⵏⵣⴰⵢ ⴰⵏⵎⴰⵜⵜⴰⵢ ⵏⵏⵉⴽ, ⵣⵓⵏⴷ ⴰⵍⴳⵓⵔⵉⵜⵎ ⵜⴰⵎⵙⵏⴰⵜ ⵏ ⵓⵙⵔⴱⵢ ⵏ ⵉⵙⵙⵉⵟⵏ ⵏ GCD ⴳ ⵉⵍⴳⴰⵎⵏ ⵉⵎⵅⵔⴱⵇⵏ.