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Level 22

Factors, Prime & Composite Numbers


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factor
A number that divides evenly into another number. 3 is a factor of 15 (look at the chart!)
Natural Number
a counting number from one to infinity.
divisibility
sharing or grouping a number into equal parts.
even number
number that is divisible by 2.
odd number
is a number that can NOT be divided evenly into groups of two
Prime number
A number that can only be divided by 1 and itself. The numbers left at the bottom of the tree
Composite number
a number with more than two factors.
highest common factor (HCF)
the biggest number that will divide two or more other numbers exactly
multiplies
a mathematical operation where a number is added to itself a number of times
lowest common multiple
the smallest number that is the multiple of two or more other numbers.