# A Die is Thrown Once. Find the Probability of Getting a Number Which (I) is a Prime Number. - Mathematics

Sum

A die is thrown once. Find the probability of getting a number which is a prime number

#### Solution

Total possible outcomes that occur after throwing a die once are 1,2,3,4,5,6
Number of possible outcomes = 6
We need to find the probability of  getting a prime number
Prime number is a number not divisible by any number except itself
Prime numbers on dice are 2,3 and 5.
Number of favourable outcomes =3

Probability of getting a prime number = " Number of favourable outcomes"/"Total number of possible outcomes"

Probability of getting a prime number = (3)/(6) = (1)/(2)

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