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A common multiple of two integers 'x' and 'y', are the multiples of 'x' which are also multiples of 'y'.
For your example, because 12 is itself a multiple of 4, ALL multiples of 12 are common multiples of 4 and 12.
To prove my point, I will list out the multiples of both 4 and 12:
multiples of 4:
4,8,12,16,20,24,28,32,36,40,44,48,52,56,60,64,68,72,76,80,84,88,92,96, 100...
multiples of 12:
12,24,36,48,60,72,84,96...
You can see here that every multiple of 12, is also a multiple of 4, thus all multiples of 12 are common multiples for 4 and 12.
Also..
a quick easy list:
12,24,36,48,60,72,84,96
and if you didn't read above, because 12 is a multiple of for, all multiples of 12 are a multiple of 4 .. simple!
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What is the Greatest common factor of four and 12?
The greatest common factor of 4 and 12 is 4 because it goes into 4 once and goes into 12 three times.4.4 divided by 4 equals 1.12 divided by 4 equals 3.
What is the least common multiple of two three four?
LCM(2, 3, 4) = 12.
What is the LCM 8 12 4?
The Least Common Multiple (LCM) for 8 12 4 is 24.
What is the least common multiple 4 and 12?
The least common multiple of 4 and 12 is 12 because both 4 and 12 can go into 12.
What is the greatest common facter of 12 and 52?
The greatest common factor of 12 and 52 is 4. 52/4 = 13 12/4 = 3
What are the first three multiplies of 4?
4 8 12
What are three multiplies of four?
It is: 3*4 = 12
What are the first three common multiplies of 4 8 and 10?
40, 80, 120
What multiplies to -12 and adds up to -4?
-16
What are the two common multiplies of 8 and 12?
They are both even numbers, so you know 2 is one of them. 8 / 2 = 4 12 / 4 = 3 (so 4 is also a multiple) The answer is 2 and 4
What are the three common multiples of 4 and 12?
The first 3 common multiples of 4 and 12 are: 12, 24, 36
What multiplies to 32 and adds to -12?
20
What multiplies into 45 and adds into 12?
57
What multiplies to get -96 and adds to get 4?
-92
What number multiplies into 12 and 16?
1, 2, 4.
What multiplies to -12 and adds to 1?
-11
What multiplies to 12 and adds up to 7?
19
