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243is a composite number. 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.
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Is 243 a composite number?
IS 243 PRIME OR COMPOSITE
Is 17 prime or composite number?
It is prime
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86 is not a prime number, so is a composite.
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No 168 is not a prime number it is a composite number
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