Mathitat
Serious maths,
gently done.

A whole number that divides exactly into another, with no remainder. 4 is a factor of 12.

In Español · sample
factor (divisor)Entero que divide exactamente a otro. 4 es factor de 12.

___ is a factor of ___ because ___ ÷ ___ = ___ exactly.

4 is a factor of 12 because 12 ÷ 4 = 3 exactly.

Algebra: (x + 2) is a factor of x² + 5x + 6, because x² + 5x + 6 = (x + 2)(x + 3).