1, 2, 3, 4, 6, 12, 103, 206, 309, 412, 618, 1236.
1, 2, 3, 4, 6, 12, 103, 206, 309, 412, 618, and 1236
1236
618*2=1236
1236
A number that has only two factors is called a prime. The only factors of a prime are 1 and the number itself.
Well, the factors of a prime number is that they only have two factors.
2 is an even number with only 2 factors.
It is: 1236 = MCCXXXVI
1236/1
All prime numbers have only 2 factors. A prime number has 1 and itself as its only factors.
A number with only two factors, 1 and itself, is a prime number.