Question

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Answer 1

Answer:

5) 17 and 71

37 and 73

79 and 97

6) The three pairs of twin primes are as follows:

(5, 7), (11, 13), (17, 19)

The difference between these prime numbers is two.

7) Solution : prime number are=90,91,92,93,94,95,96.

Step-by-step explanation:

5) So, we will first write down all the prime numbers between 1 and 100. The primes are: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97.

And than look for pairs like 13 and 31

6) Solution:

Prime numbers are the numbers with two factors, 1 and the number itself. A pair of prime numbers whose difference is 2, is called twin prime. The alternative names, given to twin primes are prime twin or prime pair.

The three pairs of twin primes are as follows:

(5, 7), (11, 13), (17, 19)

The difference between these prime numbers is two.

7) Write seven consecutive composite numbers less than 100 so that there is no prime number between them. Solution : prime number are=90,91,92,93,94,95,96