answer it please please please
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1 is no prime numbers or composite number.
1 is identified element to multiplication and division
2, 3, 5, 7, 11, 13, 17, 19 are all the primes between 1 to 20. 4, 6, 8, 9, 10, 12, 14, 15, 16 and 18 are all the composite numbers between 1 to 20.
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