Question

smallest prime number:
(a) I
(b) 2
(c) 3
2. The only prime number which is also even
(b) 2
(d) 6
3. The sum of two odd and one even numbers is
(a) Even
(b) Odd
(c) Prime
(d) Composite
4. The smallest composite number is
(b) 2
(C) 3
(d) 4
5. Tell the maximum consecutive numbers less then 100 so that there is no prime number
between them
(a) 3
(b) 6
(e) 7
(d) 8
6. If a number is divisible by 2 and 3 both then is divisible by
(a) 5
(b) 6
(c) 8
(d) 10
7. Which of the following number is divisible by 3
(a) 121
(b) 123
(c) 124
(d) 122
8. A number is divisible by 4 if its
(8) Last digit is 4
(b) last digit is 0
(c) last two digits are divisible by 4 (d) last digit is 8
9. Two numbers huving only I as common factor are called
(a) Prime numbers
(b) Co-prime numbers
(c) Composite numbers
(d) Odd numbers
10. Which of the following pair is co-prime
(a) 6 and 8
(b) 18 and 35 (c) 7 and 35
(d) 30 and 415
11. Common factors of 15 and 25 are
(1) 15
(b) 25
(c) 5
(d) 75
12. If a number is divisible two co-prime numbers than it is divisible by their
(a) Sum also
(b) Difference also
(c) Product also
(d) Quotient also​

Answer 1

Answer:

1. 2

2. 2

3. even

4. 4

5. 7

6. 6

7. 123

8. last two digits are divisible by 4

9. Co-prime numbers

10. 18 and 35

11. 5

12. product also