{"id":12635,"date":"2021-09-30T11:00:53","date_gmt":"2021-09-30T05:30:53","guid":{"rendered":"https:\/\/python-programs.com\/?p=12635"},"modified":"2021-11-22T18:35:30","modified_gmt":"2021-11-22T13:05:30","slug":"python-program-to-print-all-twin-primes-less-than-n","status":"publish","type":"post","link":"https:\/\/python-programs.com\/python-program-to-print-all-twin-primes-less-than-n\/","title":{"rendered":"Python Program to Print all Twin Primes less than N"},"content":{"rendered":"
Our website provided core java programs examples with output<\/a> aid beginners and expert coders to test their knowledge gap and learn accordingly.<\/p>\n Given a number N the task is to print all twin primes less than the given number in Python.<\/p>\n Twin Primes:<\/strong><\/p>\n We know that Prime Numbers are those with exactly two Factors. 1 and the number itself are the two Factors.<\/p>\n Twin Primes are pairs of primes that differ by two digits.<\/p>\n (3, 5), (5, 7), (11, 13), and so on are some examples.<\/p>\n In the Number System, there is an unlimited number of Twin Primes.<\/p>\n Examples:<\/strong><\/p>\n Example1:<\/strong><\/p>\n Input:<\/strong><\/p>\n Output:<\/strong><\/p>\n Example2:<\/strong><\/p>\n Input:<\/strong><\/p>\n Output:<\/strong><\/p>\n Below are the ways to print all Twin primes less than the given number N.<\/p>\n Approach:<\/strong><\/p>\n Below is the implementation:<\/strong><\/p>\n Output:<\/strong><\/p>\n Approach:<\/strong><\/p>\n Below is the implementation:<\/strong><\/p>\n Output:<\/strong><\/p>\n Related Programs<\/strong>:<\/p>\n Our website provided core java programs examples with output aid beginners and expert coders to test their knowledge gap and learn accordingly. Given a number N the task is to print all twin primes less than the given number in Python. Twin Primes: We know that Prime Numbers are those with exactly two Factors. 1 …<\/p>\nGiven number =562<\/pre>\n
The twin primes below the number 562 are :\r\n(3,5) (5,7) (11,13) (17,19) (29,31) (41,43) (59,61) (71,73) (101,103) (107,109) (137,139) (149,151) (179,181) \r\n(191,193) (197,199) (227,229) (239,241) (269,271) (281,283) (311,313) (347,349) (419,421) (431,433) (461,463)\r\n (521,523)<\/pre>\n
Given number =842<\/pre>\n
Enter some random number = 842\r\nThe twin primes below the number 842 are :\r\n(3,5) (5,7) (11,13) (17,19) (29,31) (41,43) (59,61) (71,73) (101,103) (107,109) (137,139) (149,151) (179,181) (191,193)\r\n (197,199) (227,229) (239,241) (269,271) (281,283) (311,313) (347,349) (419,421) (431,433) (461,463) (521,523)\r\n (569,571) (599,601) (617,619) (641,643) (659,661) (809,811) (821,823) (827,829)<\/pre>\n
Python Program to Print all Twin Primes less than N<\/h2>\n
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Method #1: Using For Loop (Static Input)<\/h3>\n
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# Let us define the function checkPrimeNum(), which accepts an integer as input and\r\n# returns True if it is prime and False if it is not.\r\n\r\n\r\ndef checkPrimeNum(gvnnum):\r\n # Declare the variable count and set it to zero.\r\n # The count variable is used here to count the number of Factors of a Number.\r\n # Whenever we find a factor for the given number,\r\n # we will increment the value of the count.\r\n countfactrs = 0\r\n for m in range(1, gvnnum+1):\r\n if gvnnum % m == 0:\r\n countfactrs = countfactrs + 1\r\n # If the count equals 2, the integer is prime,\r\n # and the function is defined to return True.\r\n if countfactrs == 2:\r\n return True\r\n\r\n\r\n# Give the number N as static input and store it in a variable.\r\nnumbr = 562\r\nprint('The twin primes below the number', numbr, 'are :')\r\n# Loop from 2 to the given number N using For loop.\r\nfor m in range(2, numbr):\r\n # If both checkPrimeNum(m) and checkPrimeNum(m+2) return True,\r\n # print m and m+2 where m is the iterator value of the For loop.\r\n if (checkPrimeNum(m) == True and checkPrimeNum(m+2) == True):\r\n print('('+str(m)+','+str(m+2)+')', end=' ')\r\n<\/pre>\n
The twin primes below the number 562 are :\r\n(3,5) (5,7) (11,13) (17,19) (29,31) (41,43) (59,61) (71,73) (101,103) (107,109) (137,139) (149,151) (179,181) \r\n(191,193) (197,199) (227,229) (239,241) (269,271) (281,283) (311,313) (347,349) (419,421) (431,433) (461,463)\r\n (521,523)<\/pre>\n
Method #2: Using For Loop (User Input)<\/h3>\n
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# Let us define the function checkPrimeNum(), which accepts an integer as input and\r\n# returns True if it is prime and False if it is not.\r\n\r\n\r\ndef checkPrimeNum(gvnnum):\r\n # Declare the variable count and set it to zero.\r\n # The count variable is used here to count the number of Factors of a Number.\r\n # Whenever we find a factor for the given number,\r\n # we will increment the value of the count.\r\n countfactrs = 0\r\n for m in range(1, gvnnum+1):\r\n if gvnnum % m == 0:\r\n countfactrs = countfactrs + 1\r\n # If the count equals 2, the integer is prime,\r\n # and the function is defined to return True.\r\n if countfactrs == 2:\r\n return True\r\n\r\n\r\n# Give the number N as user input using int(input()) and store it in a variable.\r\nnumbr = int(input('Enter some random number = '))\r\nprint('The twin primes below the number', numbr, 'are :')\r\n# Loop from 2 to the given number N using For loop.\r\nfor m in range(2, numbr):\r\n # If both checkPrimeNum(m) and checkPrimeNum(m+2) return True,\r\n # print m and m+2 where m is the iterator value of the For loop.\r\n if (checkPrimeNum(m) == True and checkPrimeNum(m+2) == True):\r\n print('('+str(m)+','+str(m+2)+')', end=' ')\r\n<\/pre>\n
Enter some random number = 842\r\nThe twin primes below the number 842 are :\r\n(3,5) (5,7) (11,13) (17,19) (29,31) (41,43) (59,61) (71,73) (101,103) (107,109) (137,139) (149,151) (179,181) (191,193)\r\n(197,199) (227,229) (239,241) (269,271) (281,283) (311,313) (347,349) (419,421) (431,433) (461,463) (521,523)\r\n(569,571) (599,601) (617,619) (641,643) (659,661) (809,811) (821,823) (827,829)<\/pre>\n
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