Yes that's why he was called Leonarda da Vinci, the literal translation is Leonardo of Vinci, he didn't have a surname when he was born so he was called Leonardo di ser Piero da Vinci (Leonardo son of Piero of Vinci) which was later shortened to Leonardo da Vinci.
Leonardo da Vinci was a scientist, mathematician, engineer, inventor as well as a painter. Because of his curiosity and many successes, people from all over the world consider him to be the smartest and most talented man to ever live.
Leonardo da Vinci wasn't known for his mathematical discoveries, but he did collaborate with Luca Pacioli, the mathematician who wrote The Divide Proportion. He drew illustrations of regular solids for this book. He may have used the golden ratio in sketches and paintings.