Some factors are prime numbers.
Prime factors are factors that are also prime numbers.
If the numbers are prime numbers, the prime factor of each number is the number itself. If the numbers are not prime numbers, the prime factors of each number are each of the prime numbers by which the number in question can be divided without a remainder.
Prime numbers have two factors. Prime squares have three factors. Square numbers have an odd number of factors but that number varies.
Prime numbers have two factors. 2, 3 and 5 are prime numbers.
The prime numbers (factors) of 100 are: 2 and 5
The prime factors of 100 are: 2, 5
The prime factors of 100 are: 2,5
1,2,4,5,10,20,25,50,100 2 and 5 are prime.
There are 25 prime numbers between 1 and 100, all of them can be factors.
Each of the 25 prime numbers from 1 to 100 has exactly two factors, 1 and the number itself. The other 75 numbers from 1 to 100 are not prime numbers because none of them have exactly two factors.
2 and 5 are the prime factors of 100.
Numbers with more than two factors are not prime numbers
There are 25 prime numbers and 75 composite numbers from 1 to a 100. A prime number has only two factors whereas a composite number has more than two factors.
By definition, a prime number has exactly two factors. So, there are no prime numbers with exactly three factors.
Just 5
They are the numbers that have two or more factors whereas prime numbers have only two factors.