Blacklines Units 4-7
... perfect number any natural number which is equal to the sum of its divisors < itself such as 6 = 1 + 2 + 3 prime number any number that can be divided, without a remainder, only by itself and 1 composite number a natural number that is a multiple of two numbers other than itself and 1 ...
... perfect number any natural number which is equal to the sum of its divisors < itself such as 6 = 1 + 2 + 3 prime number any number that can be divided, without a remainder, only by itself and 1 composite number a natural number that is a multiple of two numbers other than itself and 1 ...
