If a two digit number is a prime number, and if the two digit number is multiplied by 3, 5 and 7 respectively, the number sum of the number obtained is still a prime number, then it is satisfied

If a two digit number is a prime number, and if the two digit number is multiplied by 3, 5 and 7 respectively, the number sum of the number obtained is still a prime number, then it is satisfied

sixty-seven
67*3=201 2+0+1=3
67*5=335 3+3+5=11
67*7=469 4+6+9=19