What is a prime number between 70 and 80?

##71##, ##73##, and ##79##

A is a number that can only be divided by 1 or itself. Otherwise, it is a composite numbers.

There are three numbers between ##70## and ##80## that fit this criteria, ##71##, ##73##, and ##79##

Here is a worksheet you can use to find all the primes between ##1## and ##100## for yourself. A similar method was used by mathematicians in Ancient Greece.

It is called the ##color(blue)”Sieve of Eratosthenes”##


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