The Least Common Multiple of 21 and 30 is 210.
The least common multiple (LCM) refers to a multiple that is COMMON to two or more numbers. You have only one number in the question! The least multiple of a number is itself.
The least common multiple of the numbers 21 and 30 is 210.
210
It is: 210
630
Since one number ends in a zero, your least common multiple must also end in one. 21 x 10=210 and 30 x 7=210It is: 210
The Least Common Multiple (LCM) of 30, 21, and 7 is 210.
420
210
210
The greatest common multiple of any set of integers is infinite.