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Byju's Answer
Standard IV
Mathematics
Prime and Composite Numbers
Find the numb...
Question
Find the number of two digit prime numbers which remain prime even on inverting the position of its digits.
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Solution
These numbers are 13, 31, 17, 71, 37, 73, 79, 97.
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The number of two digit prime numbers, with distinct digits, on being reversed they give again to prime number is:-
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