Det er et faktum.

In Det er et faktum, det works like it in English It is a fact.

Here, det does not point to a specific object. It is a general subject pronoun used in a very common Norwegian sentence pattern:

• Det er ... = It is ... / There is ...

So in this sentence, det is just the normal way to introduce the statement.

Compare:

• Det er et problem. = It is a problem.
• Det er sant. = It is true.

Because faktum is a neuter noun in Norwegian.

Norwegian nouns have grammatical gender, and the indefinite article depends on the gender:

• en for many masculine nouns
• ei for feminine nouns
• et for neuter nouns

Since faktum is neuter, you say:

• et faktum = a fact

Not:

• en faktum

Er is the present tense of å være, which means to be.

So:

• å være = to be
• er = am / is / are, depending on context

In this sentence:

• Det er et faktum. = It is a fact.

Norwegian verbs do not change depending on the subject the way English verbs do. So the same er is used with many subjects:

• Jeg er = I am
• Du er = you are
• Det er = it is
• Vi er = we are

Yes. In a normal statement, the word order is:

• subject + verb + rest

So:

• Det = subject
• er = verb
• et faktum = complement

That gives:

• Det er et faktum.

If you changed the order to Er det et faktum?, it would become a question:

• Er det et faktum? = Is it a fact?

So word order helps show whether something is a statement or a question.

Yes, but it means something slightly different.

• Det er et faktum. = It is a fact.
• Dette er et faktum. = This is a fact.

Det is more general and often refers to an idea, situation, or statement already understood from context.

Dette points more directly to something specific, like this in English.

So if you are emphasizing a particular statement, Dette er et faktum can sound stronger and more pointed.

Faktum is a noun meaning fact.

It is a neuter noun, so its forms in Bokmål are:

• et faktum = a fact
• faktumet = the fact
• fakta = facts
• faktaene = the facts

A small note: the plural fakta may look surprising if you know English, because in English facts is regular, but Norwegian keeps a form influenced by Latin.

Examples:

• Det er et faktum. = It is a fact.
• Faktumet er viktig. = The fact is important.
• Dette er kjente fakta. = These are known facts.

Yes, it is completely natural.

Det er et faktum is a normal, correct sentence in Norwegian. It can sound a little formal, firm, or emphatic, especially in argument or discussion. It is often used when someone wants to say that something is objectively true and not just an opinion.

For example, it can have a tone like:

• That is simply a fact.
• It’s a fact.

So it is natural, but often a bit stronger than a casual everyday statement.

A careful pronunciation is roughly:

• det → like deh(t)
• er → like air or a short Norwegian ehr
• et → like eh(t)
• faktum → roughly FAHK-toom

Very roughly for an English speaker:

• deht ehr eht FAHK-tum

A few helpful notes:

• The r in er is Norwegian, not an English r
• The t in det and et may be weak or barely heard in fast speech
• The stress in faktum is on the first syllable: FAK-tum

In connected speech, it may sound smoother and less separated than the written words suggest.

You make it a question by putting the verb before the subject:

• Det er et faktum. = It is a fact.
• Er det et faktum? = Is it a fact?

This is a very common pattern in Norwegian:

• statement: Det er sant. = It is true.
• question: Er det sant? = Is it true?

So the main change is word order.

Not if you want to keep the same meaning.

In Det er et faktum, et faktum is the part that tells you what it is. Without it, you would only have:

• Det er.

That is grammatically possible in some very special contexts, but by itself it usually sounds incomplete and unnatural.

So for this sentence, et faktum is necessary to complete the idea.