Prime and Composite Numbers Circle the correct answer. 1. Which of the following is not a prime number? i) 31 ii) 41 iii) 51 iv) 61 2. Which of the following is a composite number? i) 23 ii) 31 iii) 43 iv) 63 3. Which of the following is an odd composite number? i) 31 ii) 33 iii) 43 iv) 64 4. Which of the following is an even prime number? i) 3 ii) 5 iii) 7 iv) 2 5. Which of the following is not a composite number? i) 25 ii) 29 iii) 39 iv) 45 6. Which of the following is a prime number i) 12 ii) 16 iii) 29 iv) 39

Question

Prime and Composite Numbers Circle the correct answer. 1. Which of the following is not a prime number? i) 31 ii) 41 iii) 51 iv) 61 2. Which of the following is a composite number? i) 23 ii) 31 iii) 43 iv) 63 3. Which of the following is an odd composite number? i) 31 ii) 33 iii) 43 iv) 64 4. Which of the following is an even prime number? i) 3 ii) 5 iii) 7 iv) 2 5. Which of the following is not a composite number? i) 25 ii) 29 iii) 39 iv) 45 6. Which of the following is a prime number i) 12 ii) 16 iii) 29 iv) 39

Answer 1

1. iii) 51Explanation: A prime number is a number greater than 1 that has no positive divisors other than 1 and itself. Among the given options, 51 is not a prime number because it can be divided by 3 and 17.2. iv) 63Explanation: A composite number is a number greater than 1 that is not a prime number. Among the given options, 63 is a composite number because it can be divided by 1, 3, 7, 9, 21, and 63.3. ii) 33Explanation: An odd composite number is a number that is both odd and composite. Among the given options, 33 is an odd composite number because it can be divided by 1, 3, 11, and 33.4. iv) 2Explanation: An even prime number is a prime number that is also even. Among the given options, 2 is the only even prime number.5. ii) 29Explanation: A composite number is a number greater than 1 that is not a prime number. Among the given options, 29 is not a composite number because it is a prime number.6. iii) 29Explanation: A prime number is a number greater than 1 that has no positive divisors other than 1 and itself. Among the given options, 29 is a prime number because it can only be divided by 1 and 29.

Question

Solution

Resposta