Problem
NT-B1-M09-P001 Divisors of \(84\)
#1
★☆☆☆☆ Level 1 of 5
Find the number of positive divisors of \(84\).
Factor \(84\) into primes.
\(84=2^2\cdot3\cdot7\). Hence \(\tau(84)=(2+1)(1+1)(1+1)=12\).
Basic formula application.