Factor
A factor is
a number that divides exactly into another number. For example, 1, 2, 3 and 6
are the factors of 6. Each number divides into 6 with no remainder.
Prime Number
A prime
number has only 2 factors, itself and 1. 2, 3 and 5 are prime numbers.
Composite
Number
A composite
number has more than 2 factors. 8 is a composite number because it’s factors
are 1, 2, 4 and 8.
Comment
Factors
When we find
the factors that are the same for 2 numbers we find common factors.
Multiples
The multiples
of a number are found by multiplying the number by 1, by 2, by 3, by 4 and so
on, or by skip counting. When we find multiples that are the same for 2 numbers
we find common multiples..
