# math, algebra

posted by
**jasmine20**
.

i just want to re make sure that the following question is correct.

(1) List all the factors of 16

My answer: 1,2,4,8,16

That is correct. They may not want 1 and 16 to be included, since every integer has 1 and itself as factors.

so i should take away the 1 and 16

A factor of a number N is any number that evenly divides N.

Therefore, the factors of 16 are 1,2,4, 8 and 16.

A proper divisor of a number N is any number that divides N except the number N itself. 1, 3 and 7 are the proper divisors of 21.

Proper divisors are often referred to the aliquot parts of a number.