Question

How many 2 digits primes have both their non primes

Answer 1

Answer:

Two-Digit Prime having both their Digit nonprime

nonprime Digits

1, 4, 6, 8, 9

4, 6, 8 can not be 2nd Digit

11, 19

41

61

89

11 , 19 , 41 , 61 & 89 are Two-Digit Prime having both their Digit non prime

Answer 2

Solution:

Two Digit Prime having both their Digit non prime

non prime Digits

1, 4,6 ,8 ,

9

4,6,8 can not be 2nd Digit from prime

numbers

11, 19

41 61 89

(49 is not prime) (69 is not prime) (81 is not prime)

11194161 & 89 are Two Digit Prime having both their Digit non prime

hope help you