Oh, dude, you want common multiples of 3 and 7 up to 100? Well, let me break it down for you. The common multiples of 3 and 7 are numbers that both 3 and 7 can divide evenly into. So, the common multiples of 3 and 7 up to 100 are 21, 42, 63, and 84. Like, that's it.
63
The multiples of 7 up to 100 are: 7, 14, 21, 28, 35, 42, 49, 56, 63, 70, 77, 84, 91 and 98
14*7 = 98 < 100 < 105 = 15*7 and 21*7 = 147 < 150 < 154 = 22*7 So 21-14 = 7 multiples.
17,34,51,68,85
Just 63
21, 42, 63, 84
21,42,63,84
21, 42, 63, 84.
21, 42, 63, 84.
21, 42, 63, 84
21: 21, 42, 63, and 84!
21,42,63,84
63.
21, 42, 63, 84
21, 42, 63, 84.
' 1 ' is a factor of every whole number . . . . . 100 of them' 2 ' is a factor of every even number . . . . . 50 of them' 3 ' has 33 multiples up to 100 . . . . . 33 of them' 4 ' has 25 multiples up to 100 . . . . . 25 of them' 5 ' has 20 multiples up to 100 . . . . . 20 of them' 6 ' has 16 multiples up to 100 . . . . . 16 of them' 7 ' has 14 multiples up to 100 . . . . . 14 of them' 8 ' has 12 multiples up to 100 . . . . . 12 of them' 9 ' has 11 multiples up to 100 . . . . . 11 of themTotal . . . . . . . . . . . . . . . . . . . . . . . . . 281 one-digit factors in all whole numbers 1 to 100 .