The prime factor of 36 are
2 × 2 × 9
4 × 3 × 3
4 × 9
2 × 2 × 3 × 3
All the factors of 45 are
1,5,9,15,45
1,3,5,15,45
1,3,5,9,15,45.
1,3,5,9,15
Which of the following is a twin prime sets.
(5,2)
(5,3)
(7,11)
(23,29)
Only even prime number is
2
4
6
8
Which of the following is a prime number?
45
56
41
27
The H C F of two numbers is 6.If the numbers are 24 and 42,Find their L C M .
144
252
168
42
If the last digits of a number is 0 or 5 then the number is divisible by
0
5
10
+1
-1
-12
+12
All the factors of 35 are
1,5,7.
1,5,7,35
1,7,35
5,7,35
If the sum of the digits is divisible by 3,then the number is divisible by
3
9
