Prime numbers are used to encrypt credit cards and identify them.
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There are few real-life uses for prime numbers. Nevertheless, they do have a useful purpose in some cases. For instance:Circada's only come out at time periods of 13 or 17. These are prime, and mean that a predator coming out at another value (say 4 or 6) will be less likely to catch them.Prime numbers are used to contact aliens. They are a simple but universal phenomenon that will indicate our intelligence.Prime numbers are used in encryption. It is much harder to crack a code with a big number that is the product of two large prime numbers than one which has lots of factors.
Composite numbers can be used by businessmen, shopkeepers etc. These people use calculations a lot in their daily life.
A Rational Number is, by definition, a number formed by the ratio of two numbers. one-half is 1/2 and is a rational number, and a 1/4-pounder is a common burger offering. 3 1/4% may be the interest paid by your bank.
Oh, dude, you're hitting me with the math questions? Alright, so the prime numbers that are factors of those numbers are 2 and 5. Like, 2 goes into all of them, and 5 is in there too. So, yeah, those are the prime party crashers for 20, 30, 40, 50, and 60.
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