101
composite
Prime.
1000, 1020, 1040, 1060, 1080, and 1100
Mean average of 175, 550, 750 & 1100 (175+550+750+1100)/4 = 643.75
0.001, 1.1, 10, 100, 1100, 10000100
420 is a composite, as are ALL even numbers - with the exception of the number 2.
10 and 3 8 and 5 7 and 6
1100
Composite
composite
composite
prime
Prime.
8924 is the number that comes 1100 numbers after 7824.
1100
Since all the numbers in that range start with "11", there is really only one option!
Yes, 28 is composite.