Which factor is NOT considered as part of defining breaking and entering?

The monetary value of stolen items is not a factor in defining breaking and entering because the crime primarily concerns the unlawful entry into a structure with the intent to commit an illegal act therein. The essence of breaking and entering lies in the actions taken to enter a property without permission and the intent behind that entry, rather than the outcome or consequences such as the value of any items stolen.

The definition focuses more on the illegal nature of the entry itself, which is why the presence of intent to commit a crime, physical entry into a dwelling, and unlawful entry into a property are all key elements in the crime's legal definition. Each of these factors emphasizes the act of entering without authorization and the purpose behind that action, which are central to establishing the crime of breaking and entering.