
Recent Posts
 A^2 = B^3 + C^3
 Set {4,b,c,d,e} such that the product of any two of them increased by 1 is a square
 smallest integer whose first n multiples all contain a 3
 Set {3,b,c,d,e} such that the product of any two of them increased by 1 is a square
 Set {2,b,c,d,e} such that the product of any two of them increased by 1 is a square
Recent Comments
Archives
 February 2017
 January 2017
 December 2016
 November 2016
 October 2016
 September 2016
 August 2016
 July 2016
 June 2016
 May 2016
 April 2016
 March 2016
 February 2016
 January 2016
 December 2015
 November 2015
 October 2015
 September 2015
 August 2015
 July 2015
 June 2015
 May 2015
 April 2015
 March 2015
 February 2015
 January 2015
 December 2014
 November 2014
 October 2014
 September 2014
 August 2014
 July 2014
 June 2014
 May 2014
 April 2014
 March 2014
 February 2014
 January 2014
 December 2013
 November 2013
 October 2013
 September 2013
 August 2013
 July 2013
 June 2013
 May 2013
 April 2013
 March 2013
 February 2013
 January 2013
 December 2012
 November 2012
 October 2012
 September 2012
 August 2012
 July 2012
 June 2012
 May 2012
 April 2012
 March 2012
 February 2012
 January 2012
Categories
Meta
Monthly Archives: July 2013
Num3er 7312013 (July 31, 2013)
July 31 can be expressed as 731 The factors of 731 are: 1 17 43 731 The prime factors are: 17 * 43 731 = 3^6 … Continue reading
Prime Num3ers Patterns – Part 1
1033 is a prime number. 1033 = 8^1 + 8^0 + 8^3 + 8^3 2213 is a prime number. 2213 = 2^3 + 2^3 … Continue reading
Powers that start with repeated digits
Ninth powers: a(n) = n^9 8461^9 = 222226197660256026153988809486637741 Find more examples. —————————————— 5th powers: a(n) = n^5 6444^5 = 11111627111310388224 Find more … Continue reading
Prime Num3ers 4357 and 5347
4357 is a prime number. 5347 is a prime number. Notice that 5347 is a digitrotation of 4357 And, 4357^2 = 18983449 = 1898  3449 and, 1898 + 3449 … Continue reading
Num3ers ABCD = A * B^n * C * D, n=2,3
735 = 7^2 * 3 * 5 1715 = 1 * 7^3 * 1 * 5 Can you find more examples? 5digit numbers … Continue reading
Repeated digits  Num3ers abcd = a…a + b..b + c…c + d…d
4digit numbers that can be expressed by using their own digits for example, 198 = 11 + 99 + 88 Other examples, 1098 = 11 + 0 + 999 + … Continue reading
Num3ers 8970, 8971, …, 8979
8970 = 8 + 9^4 + 7^4 + 0 8971 = 8 + 9^4 + 7^4 + 1 8972 = 8 … Continue reading
Num3ers 4150, 4151, …, 4168, 4169
same digits on both sides of the equalities: 4150 = 4^5 + 1^5 + 5^5 + 0 4151 = 4^5 + 1^5 + 5^5 … Continue reading
Num3er 444
The factors of 444 are: 1 2 3 4 6 12 37 74 111 148 222 444 The prime factors are: 2 * 2 * 3 … Continue reading
Num3ers 5160, 5161, 5162, … , 5169
same digits on both sides of the equality: 5! + (1+6)! + 0 = 5160 5! + (1+6)! + 1 = 5161 5! + (1+6)! … Continue reading