1. His manner is a factor in his success.

2. Man is a decisive factor in doing everything.

3. The environmental argument was a deciding factor.

4. Alcohol is a contributory factor in 10% of all road accidents.

5. I think the historical factor is overplayed, that it really doesn't mean much.

6. A limiting factor in health care is the way resources are distributed.

7. Poor organization was certainly a contributory factor to the crisis.

8. Climate was a decisive factor in establishing where the tournament should be held.

9. This is regarded as the crucial factor in deciding who should get priority.

10. Stress is often a factor in the development of long-term sickness.

11. He had one potentially decisive factor in his favour: the element of surprise.

12. Take the wind-chill factor into account.

13. Look for the common factor in all these cases.

14. He's keen, but his youth is a minus factor.

15. Heavy snow was a contributing factor in the accident.

16. Smoking is a causative factor in several major diseases.

17. Human error may have been a contributing factor.

18. The wind-chill factor will make it seem colder.

19. Lack of cash is a limiting factor.

20. Even in July the windchill factor can be intense.

21. Luck is certainly one deciding factor.

22. 3 is a factor of 15.

23. Cigarette smoking is a risk factor for this disease.

24. Age is not a factor in cataract surgery.

25. Stress is a contributing factor in many illnesses.

26. The might of the army could prove a decisive factor.

27. When you estimated the cost of the repairs(sentencedict.com),(Sentence dictionary) you forgot to factor in the labour.

28. The closure of the mine was the single most important factor in the town's decline.

29. In our task at the beginning of mind decided finally had much success, which is more than any other factor is very important.

30. The injury to their key player could be a decisive factor in the game.