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1. Prime numbers
1.1 Is 31 a prime number
1.2 Which of the following is a prime number 13,48,49,23,45,47
1.3 Which of the following is a composite number 13,19,22,31
1.4 First 1000 prime numbers
1.5 5th prime number
1.6 Prime numbers from 1 to 1000
1.7 Greatest prime number between 1 and 100
1.8 What is the next 2 prime number after 37
1.9 What is the previous 2 prime number before 37
1.10 What is the largest 2 digit prime number
1.11 What is the smallest 4 digit prime number
1.12 Express 21 as the sum of three prime numbers
1.13 are 25 and 27 co-prime numbers
1.14 Find all co-prime numbers from 1 to 100
1.15 are 11 and 13 twin primes
1.16 Find all twin prime numbers between 1 to 100





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