BBC2 年
Prime numbers, factors and multiples
All other even numbers are divisible by \({2}\). The number \({1}\) is not prime because a prime number has exactly two factors and \({1}\) only has one factor. The factors of a number are the ...
BBC2 年
Prime numbers, factors and multiples
All other even numbers are divisible by \({2}\). The number \({1}\) is not prime because a prime number has exactly two factors and \({1}\) only has one factor. The factors of a number are the ...