Where is Everest located?

Excuse me, could you please clarify the location of Mount Everest? I'm a bit confused about where exactly it is situated. I understand it's a famous mountain, but I'm not sure of its precise whereabouts. Is it located in a specific country, or does it straddle multiple borders? I'd really appreciate it if you could provide me with a concise yet informative answer. Thank you in advance for your help.