1, 2 and 84
172
170
168
70 and 4 if you add them. 80 and 6 if you subtract them. 37 and 2 if you multiply them. 148 and 2 if you divide them.
168 = 2 * 2 * 2 * 3 * 7
168 = 2 x 2 x 2 x 3 x 7.
1, 2 and 84
They are: 2*4*3*7 = 168
2, 3 and 7: 2 x 2 x 2 x 3 x 7 = 168
1298
you could multiply 84 by 10 = 840 then multiply 84 by 2 = 168 add these two numbers = 1008
172
-9.22043 and 18.22043 (to 5 dp).
You can multiply 1 and 168 or 2 and 84 or 10 and 16.8 There are infinitely many possible answers.
170
The numbers are 6 and 28