Common factor of 15 and 12 is
2
4
3
None of these
Which of the following statement is false?
Every number is both a factor and a multiple of itself
56 is a multiple of each one of 4 , 7 and 8
1 is called a unique number because it has only one factor
30615 is divisible by 9
Find a number which is a multiple of all the numbers from 1 to 10.
5040
1260
720
1440
LCM of 15, 30 is:
15
30
5
450
First multiple of a number is
1
0
10
The number itself
Find the sum of first three multiples of 5.
20
35
What is the difference between the least common multiple and highest common factor of the number 8 and 12?
28
8
The number 24 has ________ factors.
2 factors
4 factors
6 factors
8 factors
Number of multiples of 9, which is less than 50?
6
7
What are the common factors of 12 and 18?
1,2,3,4
1,3,4,5
1,2,3,6
1,2,4,6