7
1 and 7 will go into both numbers evenly leaving no remainders
14, remainder 5
308 ÷ 21 = 14 with remainder 14
what goes into both 21 and 25
7
The lowest common multiple - is 42 !
1 and 7 will go into both numbers evenly leaving no remainders
14, remainder 5
308 ÷ 21 = 14 with remainder 14
what goes into both 21 and 25
7 is a factor of both
21 divided by 14 equals 1 with a remainder of 7.
14 and 28 can both go into any multiple of 28 .
The smallest number that both 21 and 23 can go into is 483.
Both have four factors. 21 = 7 x 3 and 14 = 7 x 2
The LCM of 14 and 21 is 42. What this means is that 42 is the smallest whole number such that both 14 and 21 divide into it (without remainder). Both 14 and 21 divide into 84, for example, so 84 is a common multiple. But 42 is smaller than 84 so 84 is not the least.