They are called twin primes. 3 & 5 are twin primes.
Composite
yes it is because only 1 and 27 go into it. Actually, 3*9=27
Prime numbers are numbers that are only divisible by 1 and itself. It only has two factors (1 and itself) Composite numbers have more than 2 factors (1 and itself). They are divisible by more than just 1 and itself.
28 is composite.
How about 74 and 76
They are called twin primes. 3 & 5 are twin primes.
Composite. All whole numbers ending in six are composite.
Prime numbers are numbers with the factors 1 and itself. Composite numbers have more factors than just 1 and itself.
Because it has more than two factors. All even numbers, besides the number 2, are composite.
Numbers which can be divided by other numbers besides 1. Numbers with factors besides 1 and themselves. Numbers which are not prime. 91 is composite because it is 13 x 7. But 41 is not composite because it is only 41 x 1.
Yes except one : as they all can be divided by 2 but the only even prime number is 2 itself
18 is composite. Its factors are: 1, 2, 3, 6, 9 and 18.
Composite.
prime
It is composite.
Composite