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it means to find out if the number is composite or prime
To draw a flow chart to determine if a given number is prime or composite, you can start with an input symbol for the given number. Then, use a process symbol to divide the number by all integers from 2 to the square root of the number. If the number is divisible by any of these integers, it is composite and the flow chart should lead to an output symbol indicating it is composite. If the number is not divisible by any of these integers, it is prime and the flow chart should lead to an output symbol indicating it is prime.
Type the words "prime numbers chart" into the search engine on your computer.
You do a factor rainbow to find a prime factorization. You compare prime factorizations to find a greatest common factor.
A number is prime when it only has one and itself as factors is prime. Therefore, to tell if a number is prime or composite simply find it's factors. If it has more than two factors than it is not a prime number, it is composite.