Factors
Which number is a factor of 18?
a) 4
b) 5
c) 9
c) 9
Which one of these is NOT a multiple of 6?
a) 20
b) 36
c) 48
a) 20
Which number is a factor of 18, but not a multiple of 2?
a) 6
b) 8
c) 9
c) 9
Which number is PRIME?
A) 18
B)17
B) 17
17 only has 2 factors: 1 and itself
*18 has 6 factors: 1x18, 2x9, 3x6
4 is a factor of all of these numbers except...
a) 36
b) 22
c) 28
b) 22
Which one of these is NOT a multiple of 9?
a) 18
b) 52
c) 27
b) 52
Which number is a factor of 24, but not a multiple of 3?
a) 6
b) 8
c) 12
b) 8
Which number is COMPOSITE?
A) 22
B) 29
B) 22
22 has more than 2 factors: 1x22 and 2x11
*29 only has 2 factors: 1 and itself so it is PRIME
Which one of these is a factor pair of 48?
a) 3 and 16
b) 5 and 10
c) 8 and 7
a) 3 and 16
Which are all multiples of 4?
a) 4, 8, 14, 16
b) 16, 20, 24, 28
c) 22, 26, 30, 34
b) 16, 20, 24, 28
Which number is a factor of 20, but not a multiple of 2?
a) 5
b) 12
c) 10
a) 5
Which number is PRIME?
A) 2
B) 12
A) 2
2 only has 2 factors: 1 and itself
*12 has 6 factors: 1x12, 2x6, 3x4
Which number is a factor of 54?
a) 7
b) 6
c) 4
b) 6
Which is a multiple of 3?
a) 14
b) 31
c) 27
c) 27
Which is a multiple of 3, but not a factor of 24?
a) 9
b) 6
c) 12
a) 9
Which number is COMPOSITE?
A) 32
B) 37
A) 32
32 has more than 2 factors: 1x32, 2x16, 4x8
*37 only has 2 factors: 1 and itself so it is PRIME
7 is a factor of all of these numbers except...
a) 49
b) 28
c) 23
c) 23
Which are all multiples of 9?
a) 36, 45, 54, 63
b) 9, 18, 21, 36
c) 45, 54, 63, 80
Which is a multiple of 6, but is not a factor of 36?
a) 12
b) 18
c) 24
c) 24
16 is an EVEN number so it HAS to have 2 as a factor.