It seems like you mentioned the number "291." Could you clarify the context or what you are asking regarding "291"? For instance, are you asking about its mathematical properties, or is it related to a specific problem or concept?

Feel free to elaborate or upload any relevant information!

In the meantime, here are some mathematical properties and facts about 291:

• 291 is an odd number.
• It is a composite number, with divisors 1, 3, 97, and 291.
• The prime factorization of 291 is $3 \times 97$.
• In binary, 291 is written as $100100011_2$.
• It is not a perfect square.

Would you like to explore more details about 291, or do you have a specific problem in mind?

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Here are five questions you can explore based on 291:

1. What is the sum of the divisors of 291?
2. Can you express 291 as a sum of prime numbers?
3. What is the greatest common divisor (GCD) of 291 and 365?
4. How would you express 291 in base 8 or base 16?
5. What is the least common multiple (LCM) of 291 and 150?

Tip: Prime factorization is a useful tool for simplifying fractions and finding GCD or LCM.