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Tag Archives: Concatenation
Concatenation | x^4 * y = x || 4 || y
Older post: Concatenation | x^2 * y = x || 2 || y x^4 * y = x || 4 || y Here are few solutions: 3^4 … Continue reading
Concatenation | x^2 * y = x || 2 || y
x^2 * y = x || y x^2 * y = x || 2 || y For example, 3^2 * 375 = 3375 … Continue reading
Concatenation | (-x + y)^2 = x || y
To find integers N such that N = (-x + y)^2 = x || y N = (x – y)^2 = x || y For example, 364^2 = … Continue reading
Concatenation | (x + y)^2 = x || y
Older post: Concatenation| A+B=C and A||B = C^2 where I posted some numbers that can be expressed as A + B = C and A || B = C^2 They can … Continue reading
Pandigitals |Concatenation of semiprimes
(1) Semiprime – definition : A semiprime is a natural number that is the product of two (not necessarily distinct) prime numbers. For example, 4 = 2*2 10 = 2*5 6 = 2*3 14 = 2*7 9 = … Continue reading
Concatenation | (x – y + z)^3 = x || y || z
Older post: Concatenation: x||y||z = x^3 + y^3 + z^3 Find integers x, y and z such that (x – y + z)^3 = x || y || z … Continue reading
Concatenation| A+B=C and A||B = C^2
Find integers A, B, C such that A + B = C and A || B = C^2 For example, 88 + … Continue reading
Concatenation | N||(N+1) and N||(N-1) are squares
N || (N + 1) = … Continue reading
Concatenation | Prime Num3ers
Smallest prime which is a concatenation of n distinct primes A083427 2 23 257 2357 112573 11132357 1113223537 111317193257 11131719223357 1113171922335437 111317192232934157 11131719223293135773 1113171922329313375759 111317192232931337415743 11131719223293133741435717 A088085 2 23 239 23911 23911313 23911313353 23911313353363 23911313353363373 239113133533633733993 23911313353363373399310401 2391131335336337339931040111911 … Continue reading
Concatenation | N || (N+2) = x^2
N || (N + 2) = x^2 oeis – A115426 7874 || 7876 = 78747876 = 8874^2 8119 || 8121 = 81198121 = 9011^2 69476962 … Continue reading
