Each number has a certain amount of factors. Other numbers may have the same amount of factors, but not the same exact factors. Since numbers don't stop, thee amount of factors doesn't stop either, but each number has a distinct set.
20 and 28 both have six factors.
12, 14, and 20 have an even number of factors. 4, 9, and 16 also have an even number of factors, but since they're perfect squares, two of the factors are the same number in each case, so each appears to have an odd number of factors.
They ARE the same.
In each it is best if you start by finding the prime factors of each number.
that the shells have same properties and the periods have same properties
When two or more numbers each have one or more of the same factors, these factors are called common factors. A single number does not have common factors.
The one digit number that has the same number of factors as the number six is three. Six's factors are 1, 2, 3, and 6 while three's factors are 1 and 3. Therefore, both numbers have the same number of factors.
if you mean what is an odd number whose has the same number of factors as the number itself... then 1 will work.
The proper factors of a number do not include one and the number itself.