294, 588, 882 . . .
There are infinitely many of them so they cannot be listed. One of their multiples is 294*252*210 = 15558480.
5 multiples of 98 are: 98, 196, 294, 392, and 490.
147, 294, 441 and so on.
98, 196, 294 and so on.
147, 294, 441 and so on.
The factor pairs of 294 are (294, 1) (147, 2) (98, 3) (49, 6) (42, 7) (21, 14) None of them add up to 7. If that was -294, you could use 21 and -14
42, 84, 126, 168, 210, 252, 294, 336, 378, . . .
The multiples of 98 are an infinite set that starts with 98, 196, 294, 392, 490, 588, 686, 784, 882, 980, and so on.
The first 10 multiples of 49: 49, 98, 147, 196, 245, 294, 343, 392, 441, 490
42, 84, 126, 168, 210, 252, 294, 336, 378, . . .
That's an infinite list, started by 98, 196, 294 and so on.
98, 196, 294, 392, 490, 588, 686, 784.