103 (number)

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Cardinal one hundred three
Ordinal 103rd
(one hundred third)
Factorization prime
Prime 27th
Greek numeral ΡΓ´
Roman numeral CIII
Binary 11001112
Ternary 102113
Senary 2516
Octal 1478
Duodecimal 8712
Hexadecimal 6716

103 (one hundred [and] three) is the natural number following 102 and preceding 104.

Contents

In mathematics

103 is a prime number, and the largest prime factor of . [1] The previous prime is 101. This makes 103 a twin prime. [2] It is the fifth irregular prime, [3] because it divides the numerator of the Bernoulli number

The equation makes 103 part of a "Fermat near miss". [4]

There are 103 different connected series-parallel partial orders on exactly six unlabeled elements. [5]

103 is conjectured to be the smallest number for which repeatedly reversing the digits of its ternary representation, and adding the number to its reversal, does not eventually reach a ternary palindrome. [6]

In science

103 is the atomic number of lawrencium, a radioactive element named after Ernest Lawrence.

Related Research Articles

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600 is the natural number following 599 and preceding 601.

It is:

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<span class="mw-page-title-main">1,000,000</span> Natural number

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<span class="mw-page-title-main">1,000,000,000</span> Natural number

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271 is the natural number after 270 and before 272.

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References

  1. ↑ Sloane, N. J. A. (ed.). "SequenceA002583(Largest prime factor of n! + 1)". The On-Line Encyclopedia of Integer Sequences . OEIS Foundation.
  2. ↑ Sloane, N. J. A. (ed.). "SequenceA001097(Twin primes)". The On-Line Encyclopedia of Integer Sequences . OEIS Foundation.
  3. ↑ Sloane, N. J. A. (ed.). "SequenceA000928(Irregular primes)". The On-Line Encyclopedia of Integer Sequences . OEIS Foundation.
  4. ↑ Sloane, N. J. A. (ed.). "SequenceA050791(Consider the Diophantine equation x^3 + y^3 = z^3 + 1 (1 < x < y < z) or 'Fermat near misses'. Sequence gives values of z in monotonic increasing order.)". The On-Line Encyclopedia of Integer Sequences . OEIS Foundation.
  5. ↑ Sloane, N. J. A. (ed.). "SequenceA007453(Number of unlabeled connected series-parallel posets with n nodes)". The On-Line Encyclopedia of Integer Sequences . OEIS Foundation.
  6. ↑ Sloane, N. J. A. (ed.). "SequenceA066450(Conjectured value of the minimal number to which repeated application of the "reverse and add!" algorithm in base n does not terminate in a palindrome)". The On-Line Encyclopedia of Integer Sequences . OEIS Foundation.


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