Q: Which numbers between 2 and 20 are composite?

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The composite numbers from 2 to 20 are 4, 6, 8, 9, 10, 12, 14, 15, 16, 18, and 20.

21 and 22.

The set of even numbers contains the prime number, 2. The set of composite numbers contains infinitely many odd numbers.

All even numbers are composite, because 2 is a factor of every even number.

The composite factors of 100 are 4, 5, 10, 20, 25, 50, 100

Related questions

The composite numbers from 2 to 20 are 4, 6, 8, 9, 10, 12, 14, 15, 16, 18, and 20.

1, 2, 4, 5, 10, 20.

no, 20 is even; therefore it is a multiple of 2.

21 and 22.

9 and 15 are the only two odd composite numbers less than twenty.

Twenty is composite. It has the factors 1, 2, 4 ,5, 10, and 20. Prime numbers have exactly two factors. Composite numbers have three or more.

10 and 20 are composite numbers, not prime numbers. The prime factorization of 10 is 2 x 5. The prime factorization of 20 is 2 x 2 x 5.

The set of even numbers contains the prime number, 2. The set of composite numbers contains infinitely many odd numbers.

All even numbers are composite, because 2 is a factor of every even number.

101 and 131

120.

Yes. 120 is composite. It is divisible by other numbers than 1 and itself, such as 2, 3, and 20.