38 and 12
fifteen sixteenths, and an infinity of other numbers less than one as well as the infinity of numbers greater than or equal to one.
"Prime" numbers
No. But there can be more than one data point which has the same value as the mean for the set of numbers. Or there can be none that take the mean value.
Those are the prime numbers.
A prime number has only two factors, one and the number itself. Numbers that are multiples of other numbers greater than one have more than two.
Numbers with more than one factor pair are composite numbers.
38 and 12
Sets of numbers can have more than one mode.
The numbers are 5 and 12
Divisors. Primes are divisible by themselves, and one. Composite numbers also have other divisors.
2.5 eighths and 5.5 eighths
A composite number is one which has a factor other than 1 and itself.
All other even numbers have more than two factors.
When one of the numbers is a factor of the other.
99 is one of them and all other numbers less than 100 that have more than two factors in them.
A number with more than one factor is normal, since all numbers except 0 and 1 have more than one factor. A number with more than two factors is composite.