1,2,4,5,10,20,25,50,100
2 and 5 are prime.
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The prime factors of 100 are: 2, 5
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
They are the numbers that have more than two factors whereas prime numbers have only two factors