# User contributions for Ulrie

#### 16 April 2024

- 15:5915:59, 16 April 2024 diff hist +226 Summation of primes No edit summary current
- 15:2015:20, 16 April 2024
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**+872** Sum of the digits of n is substring of n No edit summary

#### 11 April 2024

- 15:2315:23, 11 April 2024
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**+2,140** Upside-down numbers No edit summary current - 15:1415:14, 11 April 2024
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**+1,219** Upside-down numbers No edit summary - 15:0815:08, 11 April 2024
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**+1,587** Upside-down numbers No edit summary

#### 4 April 2024

- 15:4915:49, 4 April 2024
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**+1,178** Special divisors No edit summary current - 14:5214:52, 4 April 2024 diff hist +498 Largest difference between adjacent primes No edit summary
- 14:4714:47, 4 April 2024
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**+787** Largest difference between adjacent primes No edit summary - 13:5913:59, 4 April 2024
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**+1,181** Maximum difference between adjacent elements of list No edit summary current - 13:3213:32, 4 April 2024
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**+1,154** Maximum difference between adjacent elements of list No edit summary

#### 3 April 2024

- 14:1114:11, 3 April 2024
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**+997** Count how many vowels and consonants occur in a string No edit summary current - 13:4113:41, 3 April 2024
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**+1,168** Multiplicatively perfect numbers No edit summary

#### 2 April 2024

- 17:4317:43, 2 April 2024
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**+1,446** Multiplicatively perfect numbers No edit summary - 15:4315:43, 2 April 2024
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**+1,813** Largest product in a grid No edit summary

#### 28 October 2023

- 21:1621:16, 28 October 2023 diff hist +7 Sum of square and cube digits of an integer are primes No edit summary
- 21:1521:15, 28 October 2023 diff hist −6 Sum of square and cube digits of an integer are primes No edit summary
- 21:1021:10, 28 October 2023
diff hist
**+1,093** Sum of square and cube digits of an integer are primes No edit summary

#### 25 October 2023

- 16:4116:41, 25 October 2023 diff hist 0 Recaman's sequence →{{header|Rust}}
- 16:3916:39, 25 October 2023
diff hist
**+1,210** Recaman's sequence No edit summary

#### 14 August 2023

- 16:5516:55, 14 August 2023
diff hist
**+752** Special pythagorean triplet No edit summary - 16:1316:13, 14 August 2023
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**+875** Primes whose first and last number is 3 No edit summary

#### 19 July 2023

- 21:2121:21, 19 July 2023
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**+1,383** Sub-unit squares No edit summary - 19:2319:23, 19 July 2023 diff hist −5 Sub-unit squares No edit summary

#### 18 July 2023

- 16:1916:19, 18 July 2023
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**+664** Sub-unit squares No edit summary

#### 16 June 2023

- 22:2522:25, 16 June 2023 diff hist +464 Find squares n where n+1 is prime No edit summary
- 21:5321:53, 16 June 2023
diff hist
**+579** Find squares n where n+1 is prime No edit summary

#### 19 May 2023

- 16:4216:42, 19 May 2023
diff hist
**+1,104** Find words which contains all the vowels No edit summary - 12:0712:07, 19 May 2023
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**+916** Collect and sort square numbers in ascending order from three lists No edit summary

#### 11 May 2023

- 16:4816:48, 11 May 2023
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**+910** Multiplicatively perfect numbers No edit summary

#### 23 January 2023

- 18:3818:38, 23 January 2023
diff hist
**+1,000** Show the (decimal) value of a number of 1s appended with a 3, then squared No edit summary

#### 21 January 2023

- 16:2816:28, 21 January 2023
diff hist
**+1,295** Numbers whose count of divisors is prime No edit summary

#### 18 January 2023

- 15:5215:52, 18 January 2023
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**+2,125** Honaker primes No edit summary - 14:2614:26, 18 January 2023
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**+691** Extra primes No edit summary

#### 17 January 2023

- 17:2417:24, 17 January 2023
diff hist
**+729** Prime numbers which contain 123 No edit summary - 17:0917:09, 17 January 2023
diff hist
**+1,506** Prime numbers which contain 123 No edit summary

#### 5 January 2023

- 18:4818:48, 5 January 2023
diff hist
**+879** Neighbour primes No edit summary - 18:4218:42, 5 January 2023
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**+595** Neighbour primes No edit summary

#### 18 November 2022

- 16:0916:09, 18 November 2022
diff hist
**+1,055** Numbers divisible by their individual digits, but not by the product of their digits. No edit summary - 14:1814:18, 18 November 2022
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**+849** Find prime n such that reversed n is also prime No edit summary

#### 5 November 2022

- 22:3322:33, 5 November 2022
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**+759** Nice primes No edit summary - 17:1917:19, 5 November 2022
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**+915** Giuga numbers No edit summary - 17:1417:14, 5 November 2022 diff hist +37 Giuga numbers No edit summary
- 17:1117:11, 5 November 2022
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**+695** Giuga numbers No edit summary - 14:0514:05, 5 November 2022 diff hist −4 Find adjacent primes which differ by a square integer No edit summary

#### 4 November 2022

- 21:3421:34, 4 November 2022
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**+1,189** Find adjacent primes which differ by a square integer No edit summary - 20:3720:37, 4 November 2022
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**+1,402** Find adjacent primes which differ by a square integer No edit summary - 19:2619:26, 4 November 2022 diff hist +401 Largest prime factor No edit summary

#### 13 October 2022

- 11:0911:09, 13 October 2022
diff hist
**+3,074** Curzon numbers No edit summary