Multiples & LCM
The first five multiples of 7.
7, 14, 21, 28, 35
Factors of 27.
1, 3, 9, 27
This single-digit square number is neither a prime nor a composite.
1
The square root of 64.
8
Numbers less than zero.
Negative numbers.
The LCM of 3 and 4.
12
Factors of 36.
1, 2, 3, 4, 6, 9, 12, 18, 36
This is the first prime number.
2
9 squared.
81
6-(-7)=
13
The LCM of 6 and 8.
24
The HCF of 27 and 36.
9
This type of number has exactly two factors.
Prime number
5 squared in expanded form.
5 x 5
-12+(-3)=
-15
The first four multiples of 15 and 20.
15, 30, 45, 60
20, 40, 60, 80
The HCF of 15 and 45.
15
This type of number has more than two factors.
Composite number
252
625
-10+7=
-3
The LCM of 24 and 30.
120
This type of number has an odd number of factors.
Square number.
A prime number between 90 and 100.
97
The square root of 900.
30
5+(-3)x4-3+10=
0