how to find the prime factors of a number in python Below are two ways to generate prime factors of given number efficiently from math import sqrt def prime factors num This function collectes all prime factors of given number and prints them
Given a number n write an efficient function to print all prime factors of n For example if the input number is 12 then output should be 2 2 3 And if the input number is 315 then output should be 3 3 5 7 Following are the steps to find all prime factors 1 While n is divisible by 2 print 2 and divide n by 2 Steps to find the prime factors of a number Let the number be denoted by num while num is divisible by 2 we will print 2 and divide the num by 2 After step 2 num must be always odd Start a loop from I 3 to the square root of n If i divide num print i and divide num by i
how to find the prime factors of a number in python
how to find the prime factors of a number in python
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Program To Find All Factors Of A Number Mobile Legends
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How to print a prime factor of a number Naive solution Given a number n write a function to print all prime factors of n For example if the input number is 12 then output should be 2 2 3 and if the input number is 315 then output should be 3 3 5 7 Following are the steps to find all prime factors I can come up with a list of all of the primes that are the factor of a given number The Fundamental Theorem of Arithmetic implies that I can use this list to derive every factor of the number
Example 1 Using a flag variable Program to check if a number is prime or not num 29 To take input from the user num int input Enter a number define a flag variable flag False if num 1 print num is not a prime number elif num 1 check for factors for i in range 2 num Number int input Enter a positive number to find factors factor num for num in range 1 number 1 if number num 0 for fac in factor print f fac is a factor of number
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Python asked Sep 13 2020 at 8 16 Raja 11 1 3 Answers Sorted by 0 You need to find all factors and then select if those factors are prime You can build the factors array first and then select prime numbers out of this array like here import math Different Approaches to Find Prime Factors in Python We can find prime factors of the specified number in various ways This article will demonstrate three methods that are listed below Create a custom function Use the Sieve of Eratosthenes Use the primefac module Let s start with creating a custom function in Python Custom
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