Question

2. A composite number has only two factors, 1 and the number itself. .
3. Every twin primes are also co-primes.​

Answer 1

Answer:

2. Two(2)

3. Three(3) and Five(5)

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Answer 2

Answer:

Your statements answer

Step-by-step explanation:

2. A prime number has only two factors: 1 and itself. A composite number has more than two factors. The number 1 is neither prime nor composite. The prime numbers between 2 and 31 are 2, 3, 5, 7, 11, 13, 17, 19, 23, 29 and 31 since each of these numbers has only two factors, itself and 1.

3. Not all co-prime numbers are twin prime. Co-prime numbers have their HCF equal to 1. Twin prime numbers are two consecutive odd numbers that are prime. The number 1 is co-prime with other numbers, and 1 itself is not prime. Two prime numbers are co-prime but not necessarily twin prime. 3 and 4 are co-prime, but 4 is not prime. 8 and 9 are co-prime, but neither 8 nor 9 is prime.