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IS ‘N’ A PRIME NUMBER ?

IS ‘N’ A PRIME NUMBER ?. DONE BY: ISHTIAQUE KHAN 1757, CSEDU. THEORY ONE. WHAT IS A PRIME NUMBER ? A Prime Number is any integral number that has exactly 2 divisors. THEORY TWO. IS 0 A PRIME NUMBER? No, 0 is not a Prime Number. IS 1 A PRIME NUMBER? No, 1 is not a Prime Number.

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IS ‘N’ A PRIME NUMBER ?

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  1. IS ‘N’ A PRIME NUMBER ? DONE BY: ISHTIAQUE KHAN 1757, CSEDU

  2. THEORY ONE • WHAT IS A PRIME NUMBER ? A Prime Number is any integral number that has exactly 2 divisors.

  3. THEORY TWO • IS 0 A PRIME NUMBER? No, 0 is not a Prime Number. • IS 1 A PRIME NUMBER? No, 1 is not a Prime Number. • IS 2 A PRIME NUMBER? Yes, 2 is a Prime Number.

  4. THEORY THREE • IF A POSITIVE INTEGER N IS NOT DIVISIBLE BY ANY NUMBER, X, IN THE RANGE: 2 <= X <= , THEN N IS NOT DIVISIBLE BY ANY NUMBER, X, IN THE RANGE: < X < N

  5. LET N BE 37

  6. LET N BE 37

  7. LET N BE 37 LET X BE 2

  8. THEREFORE N IS NOT DIVISIBLE BY 2 OR ANY OTHER MULTIPLE OF 2

  9. LET N BE 37

  10. LET N BE 37

  11. LET N BE 37

  12. LET N BE 37

  13. LET N BE 37

  14. LET N BE 37

  15. LET N BE 37

  16. LET N BE 37

  17. LET N BE 37

  18. LET N BE 37

  19. LET N BE 37

  20. LET N BE 37

  21. LET N BE 37

  22. LET N BE 37

  23. LET N BE 37

  24. LET N BE 37

  25. LET N BE 37

  26. LET N BE 37

  27. LET N BE 37 LET X BE 3

  28. THEREFORE N IS NOT DIVISIBLE BY 3 OR ANY OTHER MULTIPLE OF 3

  29. LET N BE 37

  30. LET N BE 37

  31. LET N BE 37

  32. LET N BE 37

  33. LET N BE 37

  34. LET N BE 37

  35. LET N BE 37

  36. LET N BE 37

  37. LET N BE 37

  38. LET N BE 37

  39. LET N BE 37

  40. LET N BE 37

  41. LET N BE 37 LET X BE 4 BUT 4 IS ALREADY CHECKED

  42. LET N BE 37 LET X BE 5

  43. THEREFORE N IS NOT DIVISIBLE BY 5 OR ANY OTHER MULTIPLE OF 5

  44. LET N BE 37

  45. LET N BE 37

  46. LET N BE 37

  47. LET N BE 37

  48. LET N BE 37

  49. LET N BE 37

  50. LET N BE 37

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