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  2. Megaprime - Wikipedia

    en.wikipedia.org/wiki/Megaprime

    A megaprime is a prime number with at least one million decimal digits. [1]Other terms for large primes include "titanic prime", coined by Samuel Yates in the 1980s for a prime with at least 1000 digits [2] (of which the smallest is 10 999 +7), [3] and "gigantic prime" for a prime with at least 10,000 digits [4] (of which the smallest is 10 9999 +33603).

  3. List of prime numbers - Wikipedia

    en.wikipedia.org/wiki/List_of_prime_numbers

    A prime number (or prime) is a natural number greater than 1 that has no positive divisors other than 1 and itself. By Euclid's theorem , there are an infinite number of prime numbers. Subsets of the prime numbers may be generated with various formulas for primes .

  4. Rayo's number - Wikipedia

    en.wikipedia.org/wiki/Rayo's_number

    The Rayo function of a natural number , notated as (), is the smallest number bigger than every finite number with the following property: there is a formula () in the language of first-order set-theory (as presented in the definition of ) with less than symbols and as its only free variable such that: (a) there is a variable assignment assigning to such that ([()],), and (b) for any variable ...

  5. Amateur mathematician discovers largest known prime number ...

    www.aol.com/amateur-mathematician-discovers...

    New prime is 16 million digits larger than previous one. New prime is 16 million digits larger than previous one. Skip to main content. 24/7 Help. For premium support please call: 800-290-4726 ...

  6. Largest known prime number - Wikipedia

    en.wikipedia.org/wiki/Largest_known_prime_number

    [1] A plot of the number of digits in the largest known prime by year, since the electronic computer. The vertical scale is logarithmic. A prime number is a natural number greater than 1 with no divisors other than 1 and itself. According to Euclid's theorem there are infinitely many prime numbers, so there is no largest prime.

  7. Persistence of a number - Wikipedia

    en.wikipedia.org/wiki/Persistence_of_a_number

    In base 10, there is thought to be no number with a multiplicative persistence greater than 11; this is known to be true for numbers up to 2.67×10 30000. [1] [2] The smallest numbers with persistence 0, 1, 2, ... are: 0, 10, 25, 39, 77, 679, 6788, 68889, 2677889, 26888999, 3778888999, 277777788888899. (sequence A003001 in the OEIS)

  8. Table of prime factors - Wikipedia

    en.wikipedia.org/wiki/Table_of_prime_factors

    An economical number has been defined as a frugal number, but also as a number that is either frugal or equidigital. gcd( m , n ) ( greatest common divisor of m and n ) is the product of all prime factors which are both in m and n (with the smallest multiplicity for m and n ).

  9. Pandigital number - Wikipedia

    en.wikipedia.org/wiki/Pandigital_number

    In mathematics, a pandigital number is an integer that in a given base has among its significant digits each digit used in the base at least once. For example, 1234567890 (one billion two hundred thirty-four million five hundred sixty-seven thousand eight hundred ninety) is a pandigital number in base 10.