# Let a be least residue modulo 5. Compute the least residue of a^5 for each a.

#### makenqau

##### New member
[FONT=&quot]Let a be the least residue modulo 5. How can we compute the least residue of a^5 for each a.[/FONT]

#### tkhunny

##### Moderator
Staff member
Where are you struggling? residue mod 5 only has 5 outcomes.