1, The full form of M&M is Mars & Murrie. It’s used on Business ,Products in Worldwide

M&M’s are small colorful button-shaped milk candies with the letter “m” printed in lower case on each candy with vegetable dye. The name M&M is from Forrest Mars, who developed them and Bruce Murrie, his business partner of the time. Forrest Mars invented the recipe for M&Ms chocolate during the Spanish Civil War where is saw soldiers eating pieces of chocolate covered with a hard sugary coating, preventing the candies from melting. Forrest Mars received a patent for his manufacturing process on March 3, 1941. Later Forrest Mars bought Murrie out, gaining complete control over the candy.

2, The full form of M&M is Mahindra & Mahindra. It’s used on Business ,Companies & Corporations in India

Mahindra & Mahindra Limited (M&M) is an Indian multinational automobile manufacturing corporation headquartered in Mumbai, Maharashtra.