With this application, you can quickly find out what number the number corresponds to. For example, if you search for "7", the app will tell you if the number is a prime number, a palindrome number, a happy number, a harshad number, etc.

・Corresponding Number Theory
Prime number
Fibonacci number
Palindrome number
Armstrong number
Happy number
Circular Prime Number
Perfect Square
Perfect Cube
Duck Number
Spy Number
Automorphic number
Strobogrammatic Number
Disarium Number
Emirp Number

・Functions
1. when you enter a number, you can immediately determine what the number theory is.
2. displays a modal with the meaning of the number theory and an example when tapped.

・Displays a modal with the meaning of the number theory and an example when tapped.

===
1. Prime number
2. A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself.
3. Example: 2,3,5,7...
===
2. A Harshad number is a number that is divisible by the sum of its digits.
3. Example: 18...
===
1. Armstrong number
2. An Armstrong number is a number that is equal to the sum of cubes of its digits.
3. Example: 153,370,371,407...
===
1. Palindrome number
2. A palindrome number is a number that is the same when read forwards or backwards.
3. Example: 121,12321...
===
1. Automorphic number
2. An automorphic number is a number whose square "ends" in the same digits as the number itself.
3. Example: 5, 6, 25, 76, 376, 625
===
1. Emirp Number
2. An emirp number is a prime number that results in a different prime when its digits are reverse.
3. Example: 13, 17, 31, 37...

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