Is 19 a factor or a multiple number?
19 can be both the factor of another number and a multiple.
For example, 19 is a multiple of 1 (1 x 19 = 19). This is the
only example of where 19 is a multiple of an integer (as 19 is
prime).
An example of 19 being a factor is when looking at the number
38. 2x19=38, therefore 19 is a factor of 38. There are many numbers
(infinitely many) which have 19 as a factor.