factor
The factor pairs of 18 are...
1x18
6x3
and
__ x __
What are the missing numbers?
9x2
The multiples of 4 are....
4, __ , 12, __ , 20, 24, __ , 32, ___ , 40
Fill in the missing numbers.
8, 16, 28, 36
what does gcf stand for?
greatest common factor
what does lcm stand for?
least common multiple
T or F
Factor pairs of 4 are written like this: 1x4
2x2
Factors of 4 are written like this: 1,2, 4
T
What are the factors of 16 ?
1, 2, 4, 8, 16
What are the multiples of 6?
6, 12, 18, 24, 30, 36, 42, 48, 54, 60, 66, 72
gcf of 4 and 8?
4: 1, 2, 4
8: 1, 2, 4, 8
Answer:4
lcm of 9 and 3?
3: 3, 6, 9
9: 9
Answer:9
T or F
In 7x6=42, 42 is the product of 7x6
T
Is 3 a factor of 9?
Yes
3x3=9
Is 27 a multiple of 7?
No, but 28 is!
gcf of 14 and 35?
14: 1, 2, 7, 14
35: 1, 5, 7, 35
Answer: 7
lcm of 3 and 8?
3: 3, 6, 9, 12, 15, 18, 21, 24
8: 8, 16, 24
Answer: 24
T or F
6 is a multiple of both 3 and 2
T
multiples of 2: 2, 4, 6
multiples of 3: 3, 6
1, 4, 2, 8 are the factors of what number?
8
28, 35, 42, 49 and 56 are all multiples of which number?
7
gcf of 28 and 12?
28: 1, 2, 4, 7, 14, 28
12: 1, 2, 3, 4, 6, 12
answer is 4
L.C.M of 8 and 10.
a) 30
b) 40
c) 20
d) None of these
8: 8x5=40 8x10=80
10: 40
Answer: 40
which number is a factor for all the numbers?
1
factors of 50?
1x50
2x25
5x10
If a number ends with 0 or 5, then it is a multiple of which of these numbers?
a) 2
b) 4
c) 5
d) 6
5
GCF of 8,12, 20 is
a) 2
b) 4
c) 6
d) 8
8: 1, 2, 4, 8
8 doesn't go into 12 or 20 so its the answer but 4 goes into all the numbers so answer is 4.
LCM of (2, 4, 6) is:
a) 2
b) 8
c) 12
d) 6
2: 2, 4, 6, 8, 10, 12
4: 4, 8, 12
6: 6, 12
answer is 12
Whats the difference between a multiple and a factor of a number?
multiple is pretty much the times table of a number
factor are number that multiplied together give you that number