Question

write the set of prime number from 1 to 25 in listing method​

Answer 1

Answer:

2,3,5,7,11,13,17,19,23

Answer 2

Given :  prime number from 1 to 25

To Find : write the set of prime number from 1 to 25 in listing method​

Solution:

Prime numbers are those numbers which have exactly two factors  1 and number it self

Prime numbers from 1 to 25 are

2 , 3 , 5 , 7 , 11 , 13 , 17 , 19 , 23

Let say A represent  set of  prime number from 1 to 25

A = { 2 , 3 , 5 , 7 , 11 , 13 , 17 , 19 , 23 }

n(A) = 9

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