Each student at a certain business school is assigned a 7-digit student identification number. The first digit of the identification number cannot be zero, and the last digit of the identification number must be prime. How many different student identification numbers can the school create?
Pick one:
A) 9,000
B) 3,600
C) 2,700
D) 2,592
E) 3,600,000
The identification number is of the form _ _ _ _   1. First digit cannot be 0   2. Middle digits can be anything   3. Last digit has to be prime - 2, 3, 5, 7   We can have the following number of possibilities for each space   __ __ __ __   9 10 10 10 10 10 4   Total cases = 3,600,000   Answer : 3,600,000
<result>E</result>
Each student at a certain business school is assigned a 7-digit student identification number. The first digit of the identification number cannot be zero, and the last digit of the identification number must be prime. How many different student identification numbers can the school create?