Write down separately the prime and composite numbers less than 20 .

To do:

We have to write separately the prime and composite numbers less than 20.

Solution:

Prime numbers are those numbers that are divisible by themselves and 1.

Composite numbers are those numbers that are NOT prime numbers.

$2, 3, 5, 7, 11, 13, 17$ and $19$ are the prime numbers less than 20.

$4, 6, 8, 9, 10, 12, 14, 15, 16$ and $18$ are the composite numbers less than 20.

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Updated on: 10-Oct-2022

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