![]() ![]() This is our list of prime numbers from 1 to 100. All of these numbers had already been crossed out so we have finished crossing out all of the composite numbers on our table. The next prime number is 11, so we cross out all of the multiples of 11 which are 22, 33, 44, 55, 66, 77, 88, and 99. Then we have the prime number 7 and we cross out all of the multiples of 7. ![]() The next prime number is 3, so we can cross out all the multiples of 3 since they will be composite numbers.Īfter 3, is the next prime number 5, so we cross out all of the multiples of 5. We cross out all of the multiples of 2 on the table. 2 is a prime number but all of the multiples of 2 will be composite numbers since they will be divisible by 2. We are going to create a table with all of the prime numbers that exist up to 100. So, if you divide the number by anything other than one or itself, you will get a remainder that is not zero. Prime numbers are the numbers that are only divisible by themselves and 1, in other words, if we try to divide them by another number, the result is not a whole number.
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