Some tasks are stubbornly repetitive: fifty placeholder rows for a report, a hundred identical test values, ten identical lines in a config sample. Typing the same number by hand invites mistakes on the third copy and tedium by the tenth. A repeat operation writes them all in one stroke, exactly the same every time.
Repeat a Number prints any number 1 to 1000 times, joined by nothing, a space, a comma, a newline or any separator you invent. Each copy is handled as text, so signs, decimals and enormous magnitudes repeat faithfully. Copy the whole run or download it as a file - your test data is ready in seconds.