Prime. It is only divisible by itself and one.
7 is prime.
prime
The Number 7 is a prime number
8 is a composite number but 7 is a prime number
'7' is an ODD PRIME Number. NB All even numbers end in 0,2,4,6,8, '7' does NOT end in any of these numbers, therefore it is NOT an even number. '7' is a PRIME Number because there are no number that can be multplied together to answer to '7'. Being a Prime Number it is NOT a compound number. Compound numbers are those that are the product of the multiplication of two smaller numbers. e.g. 2 x 3 = 6 ( '6' is compound). The first few prime numbers , up '20' are;- 2,3,5,7,11,13,17,& 19 . NB All prime numbers except '2' are ODD numbers. Prime numbers , like all numbers, go to inifinity. Any number, however large, that ends in an EVEN Number, or ,5, is NOT a prime number. e.g. 1,000,002 is NOT a prime e.g. 1,00,000,005 is NOT a prime. et seq.,
prime
301 is not prime. 301 = 7 * 43
7 is prime
343 is not prime. 343 = 7 * 7 * 7
prime
prime
3367 is a composite number. Its prime factors are 7, 13, 37