The numbers 13 and 31 are prime numbers. Both these numbers have the same digits 1 and 3. Find such pairs of prime numbers up to 100.
Prime numbers are the numbers that have only two factors, that are, 1 and the number itself.
Answer: The pairs of such numbers are:

17 and 71

37 and 73

79 and 97
We will show the prime number chart to answer this question.
Explanation:
The prime numbers from 1 to 100 are shown in the number chart below.
Clearly, the numbers 17, 71, 37, 73, 79, and 97 are prime numbers.
So, the pairs of such numbers are:

17 and 71

37 and 73

79 and 97