
65. Numbers having more than two factors are called
- (A) Prime numbers
- (B) Co-prime numbers
- (C) Even numbers
- (D) Composite numbers
64. The sum of two odd and one even numbers is
- (A) Even
- (B) Odd
- (C) Prime
- (D) Composite
63. Which of the following statements is not true?
- (A) Both addition and multiplication are associative for whole numbers.
- (B) Zero is the identity for multiplication of whole numbers.
- (C) Addition and multiplication both are commutative for whole numbers.
- (D) Multiplication is distributive over addition for whole numbers.
62. Two numbers having only 1 as common factor are called
- (A) Prime numbers
- (B) Co- prime numbers
- (C) Composite numbers
- (D) Odd numbers
61. Which of the following statements is not true?
- (A) The HCF of two distinct prime numbers is 1
- (B) The HCF of two co prime numbers is 1
- (C) The HCF of two consecutive even numbers is 2
- (D) The HCF of an even and an odd number is even
60. If a number is divisible two co-prime numbers, then it is divisible by their
- (A) Sum also
- (B) Difference also
- (C) Product also
- (D) Quotient also
59. The multiple of 2 are also called
- (A) Even numbers
- (B) Odd numbers
- (C) Prime numbers
- (D) Composite numbers
58. Number of factors of a given number is/are
- (A) 8
- (B) Finite
- (C) Infinite
- (D) More than 8 but less than 28
57. Number of multiples of a given number is/are
- (A) 48
- (B) Finite
- (C) Infinite
- (D) More than 48 but less than 78
56. The numbers having exactly two factors are called
- (A) Even
- (B) Odd
- (C) Prime
- (D) Composite
55. The numbers having more than two factors are called
- (A) Prime numbers
- (B) Composite numbers
- (C) Even numbers
- (D) Odd numbers
54. A number for which sum of all its factors is equal to twice number is called
- (A) Perfect number
- (B) even number
- (C) Odd number
- (D) Prime number
53. The HCF of two numbers is
- (A) ≤ the smaller number
- (B) ≥ the bigger number
- (C) ≥ the smaller number
- (D) ≤ the bigger number
52. The LCM of two or more given numbers is the lowest of their
- (A) Common Factors
- (B) Common Multiples
- (C) Common divisors
- (D) None of these
51. The HCF of two or more given numbers is the highest of their
- (A) Common Multiples
- (B) Common Factors
- (C) Multiples
- (D) None of these
50. The product of L.C.M and H.C.F. of two numbers is equal to
- (A) Sum of numbers
- (B) Difference of numbers
- (C) Product of numbers
- (D) Quotients of numbers
49. What is the H.C.F. two consecutive even numbers
- (A) 1
- (B)2
- (C) 4
- (D) 8
Interesting & Mind-Stretching Set Of Problems!
One can enjoy while Solving!!
Thank You Sir