Mathitat
Serious maths,
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Highest common factor (HCF)

Practise this

The largest factor shared by two or more numbers. The HCF of 12 and 18 is 6.

In Español · sample
máximo común divisor (MCD)El mayor factor común a varios números. MCD(12, 18) = 6.

The HCF of ___ and ___ is ___ — the biggest thing that divides into both.

Numbers: the HCF of 12 and 8 is 4.

Algebra: the HCF of 4x² and 6x is 2x, so 4x² + 6x = 2x(2x + 3).