Question

The numbers 17 and 71 are prime numbers. Both these numbers have same digits 1 and 7. Find 2 more such pairs of prime numbers below 100?

Answer 1

such pair of prime numbers are as follows...

1. (37,73)

2.(13,31)

Answer 2

Solution :

Prime numbers below 100 are

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 .

Required pairs are

( 13 , 31 ) , ( 37 , 73 ) , ( 79 , 97 )

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