The least common multiple is 30.
The greatest common factor is 3.
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This cannot be answered because the common multiples of any two or more numbers are infinite.
Look at the multiples of 6. The smallest and greatest multiples of 6 that can be divided evenly by 4 are 12 and 48. So the common multiples of 4 and 6 up to 50 are 12, 24, 36, and 48.
The multiples of 6 are numbers that can be divided evenly by 6, such as 6, 12, 18, 24, and so on. The multiples of 15 are numbers that can be divided evenly by 15, such as 15, 30, 45, 60, and so forth. The least common multiple of 6 and 15 is the smallest number that is a multiple of both 6 and 15, which is 30.
Multiples of 6 are 6, 12, 18, 24, 30, 36... Multiples of 10 are 10, 20, 30, 40... The LCM of 6 and 10 is 30. The greatest common multiple could go into infinity.
Yes it is... Multiples of 3 & 6 are 3, 6, 9, 12, 15 & 18