Only the multiples of 1000.
There are 143 such numbers, too many to list.
300
428 of them.
There are 12 multiples of 77 in that range.
While there can be many multiples of 500, like 1000, 1500, 2000 and on and on, in order to have a GCF, there must be at least two numbers. So, 500 does not have a GCF.
There are 75 multiples of 12 between 100 and 1000.
There are 199 multiples of 5 in that range. There are 128 multiples of 7 in that range. There are 28 numbers on both lists. 1000 - 299 = 701
There are 166 multiples of 6 in that range. There are 100 multiples of 10 in that range. There are 33 numbers on both lists. 266 - 33 = 233
There are 166 multiples of 6 in that range. There are 100 multiples of 10 in that range. There are 33 numbers on both lists. 266 - 33 = 233
500
There are eleven such numbers.Get the common multiple of those numbers. All other common multiples will be multiples of this common multiple; that is, you can multiply the common multiple by 1, by 2, by 3, etc. to get additional numbers that are multiples of both numbers.