23
Two-digit prime numbers whose digits add up to 10 are:193773
The 3 largest 2 digit prime numbers are 83, 89, and 97. The sum is 269
The only two digit numbers whose digits add up to 17 are 89 and 98. Since 98 is an even number, 89 is prime.
2 and 3.
-5
23
I would say: 43 Or 7
Two-digit prime numbers whose digits add up to 10 are:193773
29 is the answer. 29 is prime. 2+9=11 which is prime. 9-2=7 which is prime.
930
123
The 3 largest 2 digit prime numbers are 83, 89, and 97. The sum is 269
2 x 3 x 7 = 42
No.
27
67