# Math Help - Prime

1. ## Prime

Which positive integers less than 12 are relatively prime to 12?

2. $|\{5, 7, 11\}|=3=\phi(12)$

3. Originally Posted by Also sprach Zarathustra
$|\{5, 7, 11\}|=3=\phi(12)$
Actually {1,5,7,11}

4. Originally Posted by ilovemymath
Which positive integers less than 12 are relatively prime to 12?
Do you know the meaning of relatively prime? Can you list the natural numbers that are less than 12? Where are you stuck here?