What Is A Simple Process To Determine Whether Or Not A Number Is Prime?
OK. There is a simple thing that I learned and it might work for you. If a number is prime then it can only be multiplied by one, you probably knew that. The easiest way to do the find if its prime game is this… All numbers that are even are not prime because they are divided by 2 All numbers that have 0 or 5 in the ones place is not prime because they are a multiple of 5 If you add all the numbers in the problem and they add up to a number that is divisible by 3 then it is not a prime number… For Example say they want you to find out if 234 is a prime number. Well you do 2+3+4 which is 9.. this number is divisible by 3 so it is not a prime number. Also if it is not divisible by 3 then it is not divisible by 9, 6, or 3. There is no way to find out if it is divisible by 7 so sorry bout that. So you are going to have to find out the old fashion way and divide it on paper or on the calculator. For 4 you have to look at the last 2 numbers in a number. If this 2 digit number is divisibl
