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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 factors of 14 and 21 are: 14: 1,2,7,14 21:1,3,7,21 The common factors are:1 and 7. Therefore 7 is the greatest common factor (GCF)