Question

Practice Set 10
1. Which number is neither a prime number nor a composite number?
2. Which of the following are pairs of co-primes?
(i) 8. 14 (ii) 4.5
(in) 17. 19
3. List the prime numbers from 25 to 100 and say how many they are.
4. Write all the twin prime numbers from 51 to 100.
5. Write 5 pairs of twin prime numbers from 1 to 50.
6. Which are the even prime numbers?
(iv) 27. 15
with formula ​

Answer 1

Answer:

1. 1

Step-by-step explanation:

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Answer 2

Answer:

1 is a number which is not prime number nor composite number