Is it possible to mention twenty Companions who memorized the entire Holy Qur’an, along with their ages and the names of their teachers in detail?

The most prominent Companions who memorized, learned, and taught the Holy Quran are: The four Caliphs, Abu Bakr, Umar, Uthman, and Ali, in addition to Ubayy ibn Ka'b, Abdullah ibn Mas'ud, Zayd ibn Thabit, Abu Musa al-Ash'ari, Abu Darda, Abu Hurayrah, Abdullah ibn Abbas, Abdullah ibn al-Sa'ib, Mu'adh ibn Jabal, Salim mawla Abi Hudhayfah, Abdullah ibn Umar, Abdullah ibn Amr ibn al-Aas, and Uqbah ibn Amir.

Among the female Companions are: Aisha, Hafsa, and Umm Salamah, may Allah be pleased with all of them.

The Companions were keen on memorizing the Quran and teaching it to the people, as is evident from the biographies of Abu Darda and Al-Sulami in organizing teaching circles.