Prime numbers are numbers that have no other whole number factor except 1 and itself. (Example 17. Factors- 1 and 17) Composite numbers are numbers that can have many factors. (Example 16. Factors-1, 2, 4, 8, 16.)
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A Prime number has only 2 factors which are 1 and itself. Composite numbers are everything else except 1 and 0. 1 and 0 are neither prime, nor composite.
Rectangular numbers are a subset of composite numbers. The squares of prime numbers will be composite but not rectangular.
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Numbers....hehe
No. Prime numbers cannot be composite and composite numbers cannot be prime!
Prime numbers have two factors. Composite numbers have more than two.