4,8,12,16,20
All multiples of 7, which is an infinite number.
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.
84, 91 and 98
301, 308, 315, 322, 329, 336, 343, 350, 357, 364, 371, 378, 385, 392, 399.
They are: 7 14 21 28 and 35
28 and 56
Since 14 is a multiple of 7, all of its multiples are common.
Here are the multiples of 7 up to 200: 7, 14, 21, 28, 35, 42, 49, 56, 63, 70, 77, 84, 91, 98, 105, 112, 119, 126, 133, 140, 147, 154, 161, 168, 175, 182, 189, 196, 203.
60, 120, 180, 240, 300, 360, 420.
They are 7*1 7*2 7*3 all the way to 7*100 Sit down with a calculator and go through.
Multiples of 28
There are several multiples of 100. The multiples of 1 are: 1, 2, 3, 4, 5, 6, 7, 8 ect. All you have to do is add 2 zeroes. The multiples of 100 are: 100, 200, 300, 400, 500, 600, 700, 800 ect.
The first twelve positive integer multiples of 300 are as follows: 1 x 300 = 300 2 x 300 = 600 3 x 300 = 900 4 x 300 = 1200 5 x 300 = 1500 6 x 300 = 1800 7 x 300 = 2100 8 x 300 = 2400 9 x 300 = 2700 10 x 300 = 3000
Since all 3 are prime numbers LCM = 3 * 5 * 7 = 105 All multiples of 105 are multiples of 3, 5 and 7
There are 71 multiples altogether here. Some of them are 7, 14, 21.
42 is the LCM of 3, 6 and 7. All multiples of 42 are multiples of 3, 6 and 7