Find out the odd number from the given alternatives :

Except the number 2308, in all other numbers,

the product of the first two digits is equal to the

number formed with the third and the fourth digits.

3412 ⇒ 3 × 4 = 12

4520 ⇒ 4 × 5 = 20

6742 ⇒ 6 × 7 = 42

But, 2308 ⇒ 2 × 3 = 06