What are the factor pairs of 1680?

Answer 1

There are 20 factor pairs of 1,680:

1. 1680 = 1 x 1680
2. 1680 = 2 x 840
3. 1680 = 3 x 560
4. 1680 = 4 x 420
5. 1680 = 5 x 336
6. 1680 = 6 x 280
7. 1680 = 7 x 240
8. 1680 = 8 x 210
9. 1680 = 10 x 168
10. 1680 = 12 x 140
11. 1680 = 14 x 120
12. 1680 = 15 x 112
13. 1680 = 16 x 105
14. 1680 = 20 x 84
15. 1680 = 21 x 80
16. 1680 = 24 x 70
17. 1680 = 28 x 60
18. 1680 = 30 x 56
19. 1680 = 35 x 48
20. 1680 = 40 x 42

Answer 2

(16000,1)(8000,2)(4000,4)(3200,5)(2000,8)(1600,10)(1000,16)(800,20)(640,25)(500,32)(400,40)(320,50)(250,64)(200,80)(160,100)(128,125)

Answer 3

1 x 1690, 2 x 845, 5 x 338, 10 x 169, 13 x 130, 26 x 65 |65 x 26, 130 x 13, 169 x 10, 338 x 5, 845 x 2, 1690 x 1