Timings were measured using the command: python -mtimeit -s"import primes" "primes. Of all the methods tested, allowing numpy, for n=1000000, Of the plain Python methods tested, without psyco, for n=1000000, Of the plain Python methods tested, with psyco, for n=1000000, Many thanks to stephan for bringing sieve_wheel_30 to my attention.Ĭredit goes to Robert William Hanks for primesfrom2to, primesfrom3to, rwh_primes, rwh_primes1, and rwh_primes2. Zero and 1 are not considered prime numbers. List of prime numbers up to 1 000 000 000 000 (1000 billion) Prime number per page : Export as text. Prime numbers are subset of natural numbers. Any number greater than 5 that ends in a 5 can be divided by 5. Prime number is a natural number that has only two divisors: 1 and. No prime number greater than 5 ends in a 5. If the sum of a number's digits is a multiple of 3, that number can be divided by 3. All other even numbers can be divided by 2. Prime numbers include large numbers and can continue well past 100. Warning: timeit results may vary due to differences in hardware orīelow is a script which compares a number of implementations: Some facts: The only even prime number is 2. There are 25 prime numbers between 1 and 100.
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