No, but 21 is a multiple of 7.
Any multiple of 21.
3 * 7
No if you start the seven times table - 1x7=7, 2x7=14 , 3x7=21 , 7x4=28 So no it is not a multiple of seven :3
3, as 3 can only go into 3 once and 21 seven times.
A multiple of seven
No but 21 is a multiple of 3 because 7*3 = 21
3 * 35 = 5 * 21 = 7 * 15 = 105
21 is a multiple of 7 because, 3*7 = 21
1197 21*57 = 1197 19*63 = 1197
The LCM of 10 and 21 is: 210Least Common Multiple (LCM) for 10 21 is 210
21
Oh, what a happy little question! The LCM, or Least Common Multiple, of 7 and 21 is 21. You see, when we look at the multiples of 7 (7, 14, 21, 28...) and 21 (21, 42, 63...), we find that the smallest number they both share is 21. Just like painting, math can be a joyful journey of discovery!