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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
Write all the prime numbers between:
40 and 80
What are composite numbers? Can a composite number be odd? If yes, write the smallest odd composite number.
What are twin primes?
Write all the pairs of twin primes between 50 and 100
What are co-primes?
Express the following number as the sum of two odd prime:
84
Express the following odd number as the sum of three odd prime number:
35
State the following statement is True or False.
1 is the smallest prime number.
Fill in the blank.
Two perfect numbers are ________ and _______
Express the following number as the sum of three odd primes:
21
Which statement correctly describes a prime number?
