# Python Program to find prime numbers in a rangeimporttimedefis_prime(n):ifn<=1:returnFalseforiinrange(2,n):ifn%i==0:returnFalsereturnTrue# Driver functiont0=time.time()c=0#for countingforninrange(1,100000):x=is_prime(n)c+=xprint("Total prime numbers in range :",c)t1=time.tim...
Check outHow to Find the Sum of Prime Numbers in a Range in Python Method 2: Using the Sieve of Eratosthenes The Sieve of Eratosthenes is an efficient algorithm to find all primes up to a given limit. It works by iteratively marking the multiples of each prime starting from 2. Example: ...
defis_prime(num):ifnum<=1:returnFalseforiinrange(2,int(num**0.5)+1):ifnum%i==0:returnFalsereturnTruedeffind_mersenne_numbers(count):mersenne_numbers=[]n=1whilelen(mersenne_numbers)<count:mersenne_number=2**n-1ifis_prime(mersenne_number):mersenne_numbers.append(mersenne_number)n+=1return...
import math def is_prime_number(n): for i in range(2, int(math.sqrt(n)) + 1): if n % i == 0: return False return True if __name__ == '__main__': prime_numbers = list(filter(is_prime_number, range(101, 201))) print(prime_numbers) print(len(prime_numbers)) 1. 2. ...
def is_prime(n): if n <= 1: return False for i in range(2, int(n**0.5) + 1): if n % i == 0: return False return True def test_05_v0(n): # Baseline version (Inefficient way) # (calls the is_prime function n times) count = 0 for i in range(2, n + 1): if is...
importmathdefis_prime_number(n):foriinrange(2,int(math.sqrt(n)) +1):ifn % i ==0:returnFalsereturnTrueif__name__ =='__main__': prime_numbers =list(filter(is_prime_number,range(101,201)))print(prime_numbers)print(len(prime_numbers)) ...
'''This function print all prime number in range nn: (int > 2)'''# if n is larger than largest prime number in prime number list, then append new prime numbers in it.if n > prime_number_list[-1]:for x in range (10,n+1):if is_prime_number(x):prime_number_list.append(x)...
defadd_ten(num):ten=10returnnum+tenprint(add_ten(90))#100defsquare_number(x):returnx*xprint(square_number(2))#4defarea_of_circle(r):PI=3.14area=PI*r**2returnareaprint(area_of_circle(10))#314.0defsum_of_numbers(n):total=0foriinrange(n+1):total+=ireturntotalprint(sum_of_...
for i in range(2, num//2+1): if num % i == 0: return 0 return 1 def find_prime(): num = 1 count = 0 # find the 20000th prime in the world! primeCount = 20000 while count < primeCount : num += 1 count = func(num)+count ...
from math import sqrt num = int(input('请输入一个正整数: ')) end = int(sqrt(num)) is_prime = True for x in range(2, end + 1): if num % x == 0: is_prime = False break if is_prime and num != 1: print('%d是素数' % num) else: print('%d不是素数' % num) 2、练习...