Most ringers follow the definition of a peal as regulated by the Central Council. This requires a minimum of only 5,000 changes where major or a higher stage is being rung, but demands at least the full 5,040 changes on lower stages. For triples, this ensures at least a full extent; for lower stages a full extent falls well short of the goal and ringers must complete several full extents to reach 5,040 (working out mathematically to at least 7 extents on six bells, at least 42 on five, or at least 210 on four; three-bell peals are not recognised by the Central Council).