Question

13 and 31 both are prime. In both numbers, 1 and 3 are commas. Now, from 1 to 100.​

Answer 1

Answer:

2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97. Here pairs are: 13 and 31, 17 and 71, 37 and 73.

The pairs except 13 and 31 are 17 and 71, 37 and 73.

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