The first 10 multiples of 6000:
6000, 12000, 18000, 24000, 30000, 36000, 42000, 48000, 54000, 60000 . . .
The common multiples of 3,4, and 10 would be all the multiples of 60. 60, 120, 180, 240... all the way to 6000.
There are 500 multiples of 12 in that range.
3 + 6 + 9 + ... + 18000 = 3(1 + 2 + ... + 6000) = 3 × ½ × 6000 × (6000 + 1) = 54,009,000
600, 6000, 60000, 600000, 6000000, 216000.
Two numbers
5900, 6000, 6100, 6200, 6300
2000, 4000, 6000, 8000, 10000, 12000, 14000, 16000, . . .
The first 15 multiples of 1200: 1200, 2400, 3600, 4800, 6000, 7200, 8400, 9600, 10800, 12000, 13200, 14400, 15600, 16800, 18000 . . .
1500 for one 3000 for another 4500 is a third 6000 a fourth etc etc
600, 1200, 1800, 2400, 3000, 3600, 4200, 4800, 5400, 6000.
5004, 5013, 5022 and just keep adding nine until you get to 5994.
To find an even multiple of 1000 between 3591 and 5807, we need to first determine the closest lower and higher multiples of 1000. The closest lower multiple of 1000 to 3591 is 3000, and the closest higher multiple of 1000 to 5807 is 6000. Since we are looking for an even multiple, we need to choose the closest higher multiple, which is 6000. Therefore, the even multiple of 1000 between 3591 and 5807 is 6000.