Question

observe that 2*3+1=7 is a prime number .here,1 is added to a multiple of 2 to get a prime number.find three number of these type.

Answer 1

Step-by-step explanation:

2×5+3=11

here 3 is added

2×7+3=11

here 3 is added

2×11+1=23

hete 1 is added

all with a prime number