Interweaving merges the digits of two or more numbers one position at a time: 123 and 456 woven together become 142536. It is the digit-level cousin of zipping two lists - take a digit from the first, then the second, then repeat - and it shows up whenever two streams need folding into one: combining codes, mixing ID fragments, building puzzle sequences or fusing related numbers.
Interweave Numbers weaves from 2 to 6 numbers digit-by-digit into a single result, up to 1000 times per run. Shorter inputs are zero-padded to match the longest, the weave order can be reversed, and the whole list copies or downloads in one click.