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teng125
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can smby give me a simple example algorithm to determine whether the number is prime or not such as using while loop, if...then...else or others which is simple
thanx
thanx
How many of those google hits did you actually look through?teng125 said:but I'm looking for a simple example about prime number determination [algorithm] for programming language only using if...then... or while loop or repeat loops... that describe the steps of calculation
buddyholly9999 said:A simple example I can think of is go through every integer between 1 and the prime number you want to test and check to see if it is a divisor.
a_ramage_1989 said:you only need to go up to a third of the number. This is because if it is even then you know it is not prime, unless it is two. odd numbers are not divisble by 2, so the next divisor would be 3.
A prime number is a positive integer that is only divisible by 1 and itself. In other words, it has exactly two factors.
Prime numbers are important in many areas of mathematics and computer science. They are used in cryptography, prime factorization, and generating random numbers. They also have applications in fields such as number theory, algebra, and geometry.
The algorithm checks if a number is divisible by any number smaller than itself. If it is not, then it is a prime number. The while loop continues to check until it reaches the number itself or a smaller number that divides it evenly.
Yes, the simple algorithm with while loop may take longer to determine prime numbers for very large numbers. In these cases, more efficient algorithms may be used.
Yes, the simple algorithm with while loop can determine if a number is a prime number with 100% accuracy. However, it may take longer for larger numbers and there are more efficient algorithms available for larger numbers.