20 is a composite number. Its factors are 1, 2, 4, 5, 10, and 20. A prime has no factors other that 1 and itself.
It is a composite number.
the answer is 15
1 is neither a prime, nor 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.
The question is: What is a Composite number between 10 and 20. First we must remember that a Composite number is a number that is divisible by itself, 1, and also another is considered a Composite number. Therefore, the Composite numbers between 10 and 20 are 10, 12, 14, 15, 16, 18 and 20. The other numbers are called Prime numbers.
a comsite number between 40 and 50 is 49:)
No, 20 isn't prime.
The first prime after 20 is 23.
2*2*5 = 20
The prime factors of 20 are 2x2x5.
The prime factors of 20 are: 2 and 5.
Any multiple of 20 includes the prime factors of 20.
These are the prime numbers 1-20 2,3,5,7,11,13,17,19