CUET Preparation Today
If $\phi (n)$ represents Euler quotient function, then what is the value of $\phi (950)$ ? |
240 360 390 290 |
360 |
The correct answer is option (2) : 360 $\phi(950)= \phi (2×5^2×19)$ $=\phi (2) × \phi (5^2) × \phi (19)$ $= 1 × 20 × 18$ |
