no multiple of 2 so composite
It is impossible to list all the prime numbers: it has been proven (2000 years ago) that there are infinitely many. In other words, there is no last prime number.
There are 800 such numbers.
7 is a prime number!
109 is a prime number.
167 is a prime number.
2000 is, in fact, not a prime number, as it is divisible by 2.
You must look for the square of a prime number. Square root of 2000 is about 44.7, so you must look for the largest prime number below that.
2003
Please note that there cannot be a largest prime number; Euclid proved that about 2000 years ago. As to the largest known prime number, according to the Wikipedia, as of January 2014, the largest known prime number is 2 to the power 57,885,161 − 1, a number with 17,425,170 digits. This number was found to be a prime in January 2013.
It is impossible to list all the prime numbers: it has been proven (2000 years ago) that there are infinitely many. In other words, there is no last prime number.
There are 800 such numbers.
You is called a prime number!You is called a prime number!You is called a prime number!You is called a prime number!
7 is a prime number!
109 is a prime number.
167 is a prime number.
A prime number times a prime number is a composite number. Since prime numbers, except for 2, are odd numbers, a prime number times a prime number is usually an odd number. It will only be an even number if one of the prime numbers is 2. A prime number times a prime number will be a number with four factors unless both prime numbers are the same, in which case it will be a square number with only three factors.
101 is a prime number. The only factor of 101 is itself and 1.prime