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  2. List of prime numbers - Wikipedia

    en.wikipedia.org/wiki/List_of_prime_numbers

    A prime number (or prime) is a ... Some sources only list the smallest prime in each cycle, for example, ... Happy numbers that are prime. 7, 13, 19, 23, ...

  3. 41 (number) - Wikipedia

    en.wikipedia.org/wiki/41_(number)

    the 13th smallest prime number. The next is 43, making both twin primes. the sum of the first six prime numbers (2 + 3 + 5 + 7 + 11 + 13). the 12th supersingular prime [1] a Newman–Shanks–Williams prime. [2] the smallest Sophie Germain prime to start a Cunningham chain of the first kind of three terms, {41, 83, 167}.

  4. List of Mersenne primes and perfect numbers - Wikipedia

    en.wikipedia.org/wiki/List_of_Mersenne_primes...

    For example, 3 is a Mersenne prime as it is a prime number and is expressible as 2 2 − 1. [ 1 ] [ 2 ] The exponents p corresponding to Mersenne primes must themselves be prime, although the vast majority of primes p do not lead to Mersenne primes—for example, 2 11 − 1 = 2047 = 23 × 89 .

  5. Mersenne prime - Wikipedia

    en.wikipedia.org/wiki/Mersenne_prime

    That is, it is a prime number of the form M n = 2 n − 1 for some integer n. They are named after Marin Mersenne, a French Minim friar, who studied them in the early 17th century. If n is a composite number then so is 2 n − 1. Therefore, an equivalent definition of the Mersenne primes is that they are the prime numbers of the form M p = 2 p ...

  6. 43 (number) - Wikipedia

    en.wikipedia.org/wiki/43_(number)

    43 is a Heegner number. [4] 43 is the largest prime which divides the order of the Janko group J 4. 43 is a repdigit in base 6 (111). 43 is the largest natural number that is not an (original) McNugget number. [5] 43 is the smallest prime number expressible as the sum of 2, 3, 4, or 5 different primes: 43 = 41 + 2; 43 = 11 + 13 + 19; 43 = 2 ...

  7. See if You Can Ace These 120 'Are You Smarter Than a 5th ...

    www.aol.com/see-ace-120-smarter-5th-201000438.html

    102. What is the smallest prime number? Answer: 2 103. How many hours and minutes are in 555 minutes? Answer: $9 hours and 15 minutes 104. What whole number is the closest to the square root of 65 ...

  8. Table of prime factors - Wikipedia

    en.wikipedia.org/wiki/Table_of_prime_factors

    Ω(n), the prime omega function, is the number of prime factors of n counted with multiplicity (so it is the sum of all prime factor multiplicities). A prime number has Ω(n) = 1. The first: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37 (sequence A000040 in the OEIS). There are many special types of prime numbers. A composite number has Ω(n) > 1.

  9. Circular prime - Wikipedia

    en.wikipedia.org/wiki/Circular_prime

    A circular prime is a prime number with the property that the ... R 2, 13, 17, 37 ... The complete listing of the smallest representative prime from all known ...