Some Prime Math

You can divide a composite number by numbers other than than 1 and itself.

Some prime math. For example 17 can be divided only by 17 and by 1. The answer is no. As of january 2020 the largest known prime number is 2 82 589 933 1 a number which has 24 862 048 digits. Could we solve this differently.

The fundamental theorem of arithmetic. For example 2 3 5 7 and 11 are the first few prime numbers. A number that is not a prime is called a composite number. No prime number greater than 5 ends in a 5.

Prime numbers are divisible only by the number 1 or itself. The only even prime number is 2. If the sum of a number s digits is a multiple of 3 that number can be divided by 3. Could we solve this differently.

This opens in a new window. The fundamental theorem of arithmetic now that we clearly understand what a prime number is we are going to look at some important mathematical findings. All other even numbers can be divided by 2. Earlier we wrote that 18 is a product of the prime numbers 2 and 3.

We say a number is a prime number if it has exactly two divisors. To be prime a number must be divisible only by 1 and the number itself which is fulfilled by the number 2. The smallest prime number defined by modern mathematicians is 2. These numbers are called prime numbers.

Now that we clearly understand what a prime number is we are going to look at some important mathematical findings. In math prime numbers are whole numbers greater than 1 that have only two factors 1 and the number itself.