The prime factorisation of 24 is
2 × 3 × 4
6 × 4
8 × 3
2 × 2 × 2 × 3
Sum of first five prime numbers is
23
26
28
30
__________ is a multiple of every non - zero number.
1
0
10
5
The number 18 has ________ factors.
Two
Four
Six
Three
First multiple of a number is ________.
The number itself
Find the odd one:
31
43
73
93
Pick out the prime number from the following.
17
27
39
49
A given number is divisible by 6 , if it is divisible by __________.
2
3
Both 2 and 3
None of these
The smallest prime number is
The HCF of 16 and 25 is
4
