Is there a relationship between odd composite numbers and their factors?

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In summary, an odd composite property is a number that is both odd and composite, meaning it is not a prime number and has more than two factors. To identify if a number has this property, you can check if it is odd and factor it. Odd composite properties are significant in number theory and have real-life applications in cryptography and security systems. A number can have multiple odd composite properties.
  • #1
yourskadhir
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Hi,

For any odd composite 'N', let u = (N-1)/2, v = u+1, then u^2(mod p) = v^2(mod p) if and only if 'p' is a factor of 'N'.

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  • #2
Hi, Kadhirvel,
it's a bit of a trivial property, isn't it? You are saying that 2u+1 ≡ 0 (mod p), after you cancel u^2 from both sides. But 2u+1 was the same as N from the beginning.
 

1. What is an odd composite property?

An odd composite property is a number that is both odd and composite. This means that it is not a prime number and has more than two factors.

2. How can I identify if a number has an odd composite property?

To identify if a number has an odd composite property, you can first check if it is odd. Then, you can factor the number and if it has more than two factors, it is considered a composite number and therefore has an odd composite property.

3. What is the significance of odd composite properties?

Odd composite properties are important in number theory and mathematical research. They can help identify patterns and relationships between numbers and are used in various mathematical equations and formulas.

4. Are there any real-life applications of odd composite properties?

Yes, odd composite properties are used in cryptography and security systems. They play a crucial role in creating and cracking codes, ensuring the safety of sensitive information.

5. Can a number have more than one odd composite property?

Yes, a number can have multiple odd composite properties. For example, the number 15 is both odd and composite, making it an odd composite property. However, it is also divisible by 3, making it an odd composite property in a different way.

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