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 smallest integer whose first n multiples all contain a 3
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Tag Archives: 1111
Make 1111 using (+, , *, /, ^) and digits 19 only once
Make 1111 using (+, , *, /) and exponentiation using only one digit from 1 to 9 each time. For example, (6 + 6^6)/(6 + 6*6) = 1111 the digit 6 is repeated only six times. … Continue reading
Cubes that end with 1,11,111,1111,11111,…
Pattern: 7368288471 368288471 68288471 8288471 288471 88471 8471 471 71 1 To obtain single digit 1 at the end of a cube, I write 10*y + … Continue reading
Repunit  11,111,1111,11111,…. in other bases
repunit consisting of n 1’s in base n for example, the repunit consisting of two 1s’ in base 2, and repunit of three 1s’ in base 3, and so on. base n base10 11 base2 = … Continue reading
Patterns  11, 1111, 111111, …
Note the pattern: 11 = (1 * 9) + 2 1111 = (123 * 9) + 4 111111 = (12345 * 9) + 6 11111111 = … Continue reading
Num3ers 11, 111, 1111, …
1 11 a prime number 111 … Continue reading