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प्रश्न
The digits of the prime number 13 can be reversed to get another prime number 31. Find if any such pairs exist upto 100
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उत्तर
The required pairs are
(i) 17 and 71
(ii) 37 and 73
(iii) 79 and 97
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संबंधित प्रश्न
Are co-primes always primes? If no, illustrate your answer by an example.
Express the following number as the sum of two odd prime:
36
Express the following odd number as the sum of three odd prime number:
49
Express the following number as the sum of twin prime:
36
State the following statement is True or False.
1 is the smallest prime number.
State the following statement as True or False.
If two numbers are co-primes, at least one of them must be a prime number.
Which of the following are co-primes?
Which of the following number is prime?
37
Express the following number as the sum of three odd primes:
61
The Sum of two prime numbers is always even.
