Question

find the number of divisors
of 72

Answer 1

just use a multiplication chart or a calculator

Answer 2

Answer:

12

Step-by-step explanation:

72 = 2³ × 3²

There fore 3 , 2 are the two types .

So number of divisors = ( 2 + 1 )( 3 + 1 ) = 3 × 4 = 12

This is a trick to solve quickly -_^