Multiples of 3 in that range include 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51 and just keep adding three until you get to 135. For them to be common, they need to be compared to another set of multiples.
The first 5 multiples of 135 are: 135, 270, 405, 540, and 675.
15, 30, 45, 60, 75, 90, 105, 120, 135
45, 90 and 135
The multiples of 3 up to 30 are: 3,6,9,12,15,18,21,24,27,30.The multiples of 5 up to 30 are: 5,10,15,20,25,30.The only common multiples are 15 and 30.The LCM is: 30
Common multiples of 3 and 7 are numbers that are divisible by both 3 and 7. To find the common multiples up to 100, we need to find numbers that are multiples of both 3 and 7. The common multiples of 3 and 7 up to 100 are 21, 42, 63, and 84. These numbers are multiples of both 3 and 7 within the range of 1 to 100.
well the lcm is found by factoring 15 is 3 *5 27 is 3 *3 *3 so the LCM is 3*3*3*5=135 others would be multiples of that like 270,405,540 etc
15,30,45,60,75,90
9 * 5 = 45 (LCM) 45 * 2 = 90 45 * 3 = 135 45 * 4 = 180 etc.
45, 90, 135
15 and 30
21 and 42 are.
6,12,18 are the common multiples of 3 and 6