1, 3, 9, 11, 27, 33, 99, 297.
As a product of its prime factors: 3*3*3*11 = 297 or as 1*1*1*297 = 297
148 + 149 = 297
296, 297, 298, 299
11*27 = 297
297 x 4 = 1 188
1, 3, 9, 11, 27, 33, 99, 297
Yes. The only common factor of 280 and 297 is one.
1 2 148.5
Numbers are infinitely dense which means that there can be no next number.If, for example, x were the next number, then (297+x)/2 would be nearer to 297 and be greater and so would have a better claim for being next. But this process can be repeated again and again.
3 x 297 I think
With 4 different numbers, 24.