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Prime and Composite Numbers - 4

Prime and Composite Numbers - 8

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Questions

Question 1 Multiple Choice (Single Answer)

Which of the following is a prime number?

  1. 14
  2. 15
  3. 16
  4. 17
Question 2 Multiple Choice (Single Answer)

How many factors does a prime number have?

  1. 0
  2. 1
  3. 2
  4. 3 or more
Question 3 Multiple Choice (Single Answer)

23 is a _____.

  1. prime number
  2. composite number
  3. negative number
  4. surd
Question 4 Multiple Choice (Single Answer)

Which prime number is the predecessor of 47?

  1. 41
  2. 42
  3. 43
  4. 47
Question 5 Multiple Choice (Single Answer)

Which of the following prime numbers is the successor of 67?

  1. 67
  2. 71
  3. 73
  4. 79
Question 6 Multiple Choice (Single Answer)

Which is the only prime as well as an even number?

  1. 2
  2. 3
  3. 5
  4. 7
Question 7 Multiple Choice (Single Answer)

Which of the following factors of 176 is a prime number?

  1. 4
  2. 8
  3. 11
  4. 16
Question 8 Multiple Choice (Single Answer)

Which of the following statements is true about a prime number?

  1. A prime number can be a negative number.
  2. A prime number has more than 2 factors.
  3. A prime number has two factors, the number itself and any other odd number
  4. A prime number has two factors, the number itself and 1
Question 9 Multiple Choice (Single Answer)

The product of two odd prime numbers is always ____.

  1. Odd
  2. Even
  3. Can be both even and odd
  4. Either odd or even
Question 10 Multiple Choice (Single Answer)

A prime number always ends with which of the following digits?

  1. 1, 3, 5, 7
  2. 1, 3, 5, 9
  3. 1, 3, 7, 9
  4. 1, 5, 7, 9
Question 11 Multiple Choice (Single Answer)

Which prime number is the predecessor of 113?

  1. 103
  2. 107
  3. 109
  4. 113
Question 12 Multiple Choice (Single Answer)

Which of the following factors of 91 are prime numbers?

  1. 1, 7
  2. 7, 13
  3. 13, 19
  4. 7, 23
Question 13 Multiple Choice (Single Answer)

How many prime numbers are there which end with 5?

  1. 1
  2. 2
  3. 3
  4. 4
Question 14 Multiple Choice (Single Answer)

Which of the following numbers is prime?

  1. 111
  2. 121
  3. 131
  4. 141
Question 15 Multiple Choice (Single Answer)

Which of these is a prime factor of 121?

  1. 7
  2. 11
  3. 13
  4. 19
Question 16 Multiple Choice (Single Answer)

Which of the following prime numbers is the successor of 211?

  1. 211
  2. 223
  3. 227
  4. 229
Question 17 Multiple Choice (Single Answer)

The product of an even and odd prime number is always _____.

  1. Even number
  2. Odd number
  3. Neither even nor odd
  4. Either even or odd
Question 18 Multiple Choice (Single Answer)

Which of the following numbers is a prime factor of 97?

  1. 1
  2. 17
  3. 23
  4. 97
Question 19 Multiple Choice (Single Answer)

How many prime numbers are there between 90 and 100?

  1. 4
  2. 3
  3. 2
  4. 1
Question 20 Multiple Choice (Single Answer)

Which of the following is a prime number?

  1. 351
  2. 352
  3. 353
  4. 357
Question 21 Multiple Choice (Single Answer)

Which of the following intervals has minimum prime numbers?

  1. 90 to 100
  2. 70 to 80
  3. 30 to 40
  4. 10 to 20
Question 22 Multiple Choice (Single Answer)

Which of the following intervals has maximum numbers as prime?

  1. 90 to 100
  2. 70 to 80
  3. 30 to 40
  4. 10 to 20
Question 23 Multiple Choice (Single Answer)

Which of the following options is the common prime number in intervals 90 - 100 and 91 - 105?

  1. 103
  2. 101
  3. 97
  4. 93
Question 24 Multiple Choice (Single Answer)

How many 2 digit prime numbers are there that end with 5?

  1. 3
  2. 2
  3. 1
  4. 0
Question 25 Multiple Choice (Single Answer)

The length of a rectangle is 2 cm. By what number, the length of the rectangle should be multiplied so that the area of the rectangle remains a prime number?

  1. 1
  2. 2
  3. 3
  4. 4
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