Two digit prime number one less than a multiple of ten you can add 30 to you get prime number?

Edit: 49 is NOT a Prime number, it is a square, 7^2 = 49. 59, 79 and 89 however are all primer numbers meaning that any of them could be the answer to this question. 59 = 3*10-1 +30 79 = 5*10-1 + 30 89 = 6*10-1 +30 Old and incorrect answer: Answer is 49. 19 {2x10-1} +30=49 49 is prime