Here's a short story:

Islam () is an Abrahamic monotheistic religion teaching that there is only one incomparable God (Allah) and that Muhammad is the messenger of God. It is the world's second-largest religion and the fastest-growing major religion in the world, with over 1.8 billion followers or 24.1% of the global population, known as Muslims. Muslims make up a majority of the population in 50 countries. Islam teaches that God is merciful, all-powerful, unique and has guided mankind through prophets, revealed scriptures and natural signs. The primary scriptures of Islam are the Quran, viewed by Muslims as the word of God, and the teachings and normative example (called the "sunnah", composed of accounts called "hadith") of Muhammad ( 570–8 June 632 CE). 

Muslims believe that Islam is the complete and universal version of a primordial faith that was revealed many times before through prophets including Adam, Abraham, Moses and Jesus. As for the Quran, Muslims consider it to be the unaltered and final revelation of God. Like other Abrahamic religions, Islam also teaches a final judgment with the righteous rewarded paradise and unrighteous punished in hell. Religious concepts and practices include the Five Pillars of Islam, which are obligatory acts of worship, and following Islamic law, which touches on virtually every aspect of life and society, from banking and welfare to women and the environment. The cities of Mecca, Medina and Jerusalem are home to the three holiest sites in Islam. (End of story)

Provide your best guess for the following question. Give ONLY the guess, no other words or explanation.

For example:

Guess: <most likely guess, as short as possible; not a complete sentence, just the guess!>

Here are a few examples of questions and answers:

Question: how many followers are there of Islam?
Guess: over 1.8 billion

Question: what do they consider the Quran?
Guess: the word of God

Question: which cities are home to the three holiest sites in Islam?
Guess: Mecca, Medina and Jerusalem

Question: is Islam polytheistic?
Guess: unknown

Question: is Islam polytheistic or monotheistic?
Guess: monotheistic

Question: is it an Abrahamic religion?
Guess: yes

Question: how many Gods do they believe in?
Guess: one

Question: what are the followers known as?
Guess: Muslims

Question: what percent of the global population do they make up?
Guess: 24.1%

Now answer the following question in the same format.

Question: how many countries do they make up the majority of the population?

50 countries