Numbers with exactly three factors are squares of prime numbers.
4? the factors of 4 are 1,4 and 2
Numbers with three factors are squares of primes. So: 4, 9, 25
The LCM of the given three numbers is 24
Assuming that 001, 080, etc are not allowed (that is a leading zero or two is not permitted), the smallest number with exactly three digits is 100. The largest number with exactly three digits is 999. So there are 999 - 100 + 1 = 900 numbers with exactly three digits.
the four smallest numbers are 4, 9, 25 and 49.
4 and 9
Squares of prime numbers have exactly three factors.
Numbers with exactly three factors are squares of prime numbers.
The smallest number that has exactly three factors is 4.
4? the factors of 4 are 1,4 and 2
8, 2*2*2
Squares of primes.
I belive it is 4. The factors of 4 are 1,4, and 2.
A number has exactly three factors if and only if it is the square of a prime number.
By definition, a prime number has exactly two factors. So, there are no prime numbers with exactly three factors.
There are no prime numbers with three factors. By definition, a prime number has exactly two factors - 1 and itself.