Elementary School, Primary School, Junior High School, Middle School.
Determine if number is prime.
A positive natural number is given. A statement has to be made on whether this is a prime number or explain why it’s not.
A very concrete type of problem, when working with prime numbers in fifth-grade or sixth-grade, to be used as a "do now" bell-ringer activity, anticipatory set, closure exercise. This math problem would also be perfect for a quick assessment tool. The level of complexity can be controlled by selecting several problems and the magnitude of numbers used in the worksheet.
By completing this worksheet successfully, the following milestones can be achieved.
The number of problems and the number range for the number to be worked on can be chosen. Prime test will be done for given numbers. The number range is up to 100000. The answer key will identify a given number as a prime number and if it’s not a prime number, a factor set of a given number is mentioned as proof or explanation.
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