They are: 2^3 times 7^2 = 392
3 x 7 x 3
7 x 53 = 371
3 x 7 x 7 = 147
3 x 5 x 7 x 7
They are: 2*5*7*7 = 490
2 x 3 x 7 x 7
3 x 7 x 7
They are: 2^3 times 7^2 = 392
5 x 5 x 7
3 x 7 x 3
7 x 53 = 371
3 x 7 x 7 = 147
3 x 5 x 7 x 7
3 x 7 x 11 = 231
They are: 2*2*2*2*7 = 112
3 x 5 x 7