A prime number is a whole number greater than 1 whose only factors are 1 and itself. A factor is a whole number that can be divided evenly into another number. The first few prime numbers are 2, 3, 5, 7, 11, 13, 17, 19, 23 and 29.
Problem:
A special die is made in the shape of an octahedron:
The die has 8 equal faces marked with the numbers 1 to 8.
If the die is thrown once, what is the probability that the face that lands uppermost has a prime number?
A) 1/4
B) 3/8
C) 1/2
D) 5/8
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