4 ms·
Indeed it's not, it's just anything coprime to P. This explains why there are always ±1s, and in particular why e.g. 210±1/210±209 are viable, even though 209=1
by naniwaduni 4y ago
Indeed it's not, it's just anything coprime to P. This explains why there are always ±1s, and in particular why e.g. 210±1/210±209 are viable, even though 209=11*19.