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2018-10-20

What are prime numbers from 1 to 2000?

What are prime numbers from 1 to 2000?

What is the Average of Prime Numbers upto 2000?

  • 1 to 2000 Prime Numbers Chart (2 – 541) 101. 103. 107. 109. 113. 127. 131. 137. 139. 149. 151. 157. 163. 167.
  • 547 – 1223. 547. 557. 563. 569. 571. 577. 587. 593. 599. 601. 607. 613. 617. 619.
  • 1229 – 1987. 1229. 1231. 1237. 1249. 1259. 1277. 1279. 1283. 1289. 1291. 1297. 1301. 1303. 1307.
  • 1993 – 1999. 1993. 1997. 1999.

What are the prime numbers give 10 examples?

The first 10 prime numbers are 2, 3, 5, 7, 11, 13, 17, 19, 23, 29. There are 25 prime numbers between 1 and 100. Prime numbers can continue well past 100. For example, 21,577 is a prime number.

What is unhappy number?

An unhappy number is a number that is not happy, i.e., a number such that iterating this sum-of-squared-digits map starting with. never reaches the number 1. The first few unhappy numbers are 2, 3, 4, 5, 6, 8, 9, 11, 12, 14, 15, 16, 17, 18, 20, (OEIS A031177).

What are the unluckiest numbers?

The number 13 is considered an unlucky number in some countries. The end of the Mayan calendar’s 13th Baktun was superstitiously feared as a harbinger of the apocalyptic 2012 phenomenon. Fear of the number 13 has a specifically recognized phobia, triskaidekaphobia, a word coined in 1911.

How do you know a number is happy?

To find out if a number is happy, replace the number by the sum of the squares of its digits. Repeat the process until either the number equals 1 or loops endlessly in a cycle that does not include 1. When the process ends with 1 then the number is described as a happy number, otherwise, it is an unhappy number.

What are the happy numbers between 1 and 100?

The first few happy numbers are 1, 7, 10, 13, 19, 23, 28, 31, 32, 44, 49, 68, 70, 79, 82, 86, 91, 94, 97, 100, (OEIS A007770).

What is sunny number?

A number is called a sunny number if the number next to the given number is a perfect square. In other words, a number N will be a sunny number if N+1 is a perfect square.

Is perfect number Java?

Perfect Number in Java Any number can be a Java Perfect Number if the sum of its positive divisors excluding the number itself is equal to that number. For example, 28 is a perfect number because 28 is divisible by 1, 2, 4, 7, 14 and 28 and the sum of these values is 1 + 2 + 4 + 7 + 14 = 28.

What is lucky number in Java?

1, 3, 7, 9, 13, 15, 19, 21, 25, ……. Continue the above process indefinitely by removing the fourth, fifth, sixth,……, and so on, until after a fixed number of steps, certain natural numbers remain indefinitely. The numbers that remains in the sequence are known as lucky Numbers.

What is sunny number in Python?

A Number is a Sunny number if 1 is added to that number and the square root of it becomes a whole number. so, 8 is Sunny Number.

What is a duck number in Java?

Duck number is another special positive non-zero number that contains zero in it. 3210 is a Duck number because it contains zero at the end of the number but not present at the beginning of it. 08237 is not a Duck number because it contains zero at the beginning of it.

What is special no in Java?

Special Numbers in Java are ones whose sum of factorials of digits is equal to the number itself. It can be an N digit number. The program has first to break the number into its corresponding digits and calculate their factorials.

How do you check if a number is integer or not in Java?

parseInt() returns a primitive int ….The easiest way of checking if a String is a numeric or not is by using one of the following built-in Java methods:

  1. Integer. parseInt()
  2. Integer. valueOf()
  3. Double. parseDouble()
  4. Float. parseFloat()
  5. Long. parseLong()

Is string a Java?

Strings, which are widely used in Java programming, are a sequence of characters. In the Java programming language, strings are objects. The Java platform provides the String class to create and manipulate strings.

How do you tell if a number is a whole number?

Whole numbers include positive integers along with 0. There is no ‘largest’ whole number. Except 0, every whole number has an immediate predecessor or a number that comes before. A decimal number or a fraction lies between two whole numbers, but are not whole numbers.