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Find the Nth Number in a Sequence In any sequence, if you know the nth term rule, you can find any term in that sequence. Remember, n stands for the position of the term: for the 1st term, n = 1; for the 10th term, n = 10; for the 1765th term, n = 1765. We simply substitute n into the nth term rule for our quadratic sequence. To […]
Greatest Common Factor: To find the greatest common factor of two number, you can use a method called short division. Short division is done firstly finding the factors of each number, then the common factors, and finally the greatest common factor among the common factors. But the problem of short division is: when the common […]
Problem: Find all prime numbers within a given range n A prime number is a positive integer that has no positive integer divisors other than 1 and itself. There are a lot of ways to print all the prime number within range n. Method 1: The most direct method is to start from the definition. For […]
The abbreviation of RSA is Rivest–Shamir–Adleman, which is the name of three people.Rivest along with Shamir and Adleman are the inventors of the RSA algorithm. How does RSA work? An RSA user creates and publishes a public key based on two large prime numbers, along with an auxiliary value. The prime numbers are kept secret. […]
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