There are 4 positive integer factors of 1981. These are:
1, 7, 283, 1981
1, 7, 283, 1981
1,840 produced in 1981
Six factors.
How many football Super Bowls had been held in 1981
There can be infinitely many distinct factors.
the factors are 1,2,3,4,6,8,12,24 and it has 8 factors
There are 31 years between 1981 and 2012.
Seven factors.
10 factors
Two factors.
24 factors.
56 factors