a silly one- definition of a factor

[talcito]

Hey-
Kaplan defines Factors as "the positive integers that divide into that number without a reminder" - WHAT ABOUT (-1)?
Isn't it the only negative factor of a negative number?
10x

[KapTeacherEli]

Hi talcito,

Although negative numbers are divisible by -1, -1 isn't a factor--the word 'factor', by definition, refers to positive numbers that divide evenly into other positive numbers.

Hope this helps!