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There are 143 such numbers, too many to list.
Assume that the consecutive numbers are: x, x+1, x+2, x+3 Then: x + x+1 + x+2 + x+3 = 1000 4x + 6 = 1000 4x = 1000 - 6 = 994 x = 248.5 The numbers are: 248.5, 249.5, 250.5, 251.5
The prime numbers (factors) of 1000 are: 2 and 5
All of your double numbers such as 33 and 77 occur within the first hundred numbers. Viz 11, 22, 33, up to 99. That is 9 double numbers.
There are 168 prime numbers between 1 & 1000.