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