A factor of the number.
2 divides 4 into 2 with no remainder, 3 divides 6, 12 divides 36, 4 divides 12, there are way to many to name them allIs called a factor.
That's a factor.
A remainder of zero is obtained whenever the number is divided by its factor. For example, when 20 is divided by either 1,2,4,5,10 or 20 the remainder is zero. Every number has 1 as its divisor.Infact, this is the definition of divisor- a number which divides another number to return zero as the remainder.
Undefined: You cannot divide by zero
When the remainder is zero the answer is a whole number. Put that number over 1 for an improper fraction.
... is a "factor" of the given number.
19/40 is in the reduced form as there is no whole number that divides 19 and 40 evenly (remainder zero).