There are 27 different situations where that is true, but some use the same values of B, which is what you are looking for: 1. A = 11 B = 17 C = 23 B - A = 6 and C - B also = 6 2. A = 11 B = 29 C = 47 B - A = 18 and C - B also = 18 3. A = 11 B = 41 C = 71 B - A = 30 and C - B also = 30 4. A = 11 B = 47 C = 83 B - A = 36 and C - B also = 36 5. A = 13 B = 37 C = 61 B - A = 24 and C - B also = 24 6. A = 13 B = 43 C = 73 B - A = 30 and C - B also = 30 7. A = 17 B = 23 C = 29 B - A = 6 and C - B also = 6 8. A = 17 B = 29 C = 41 B - A = 12 and C - B also = 12 9. A = 17 B = 53 C = 89 B - A = 36 and C - B also = 36 10. A = 19 B = 31 C = 43 B - A = 12 and C - B also = 12 11. A = 19 B = 43 C = 67 B - A = 24 and C - B also = 24 12. A = 23 B = 41 C = 59 B - A = 18 and C - B also = 18 13. A = 23 B = 47 C = 71 B - A = 24 and C - B also = 24 14. A = 23 B = 53 C = 83 B - A = 30 and C - B also = 30 15. A = 29 B = 41 C = 53 B - A = 12 and C - B also = 12 16. A = 29 B = 59 C = 89 B - A = 30 and C - B also = 30 17. A = 31 B = 37 C = 43 B - A = 6 and C - B also = 6 18. A = 37 B = 67 C = 97 B - A = 30 and C - B also = 30 19. A = 41 B = 47 C = 53 B - A = 6 and C - B also = 6 20. A = 43 B = 61 C = 79 B - A = 18 and C - B also = 18 21. A = 47 B = 53 C = 59 B - A = 6 and C - B also = 6 22. A = 47 B = 59 C = 71 B - A = 12 and C - B also = 12 23. A = 53 B = 71 C = 89 B - A = 18 and C - B also = 18 24. A = 59 B = 71 C = 83 B - A = 12 and C - B also = 12 25. A = 61 B = 67 C = 73 B - A = 6 and C - B also = 6 26. A = 61 B = 79 C = 97 B - A = 18 and C - B also = 18 27. A = 67 B = 73 C = 79 B - A = 6 and C - B also = 6 Edwin