Testing for divisibility by 7
https://blog.plover.com/math/divisibility-by-7.html [blog.plover.com]
2018-08-01 16:18
There are well-known tests if a number (represented as a base-10 numeral) is divisible by 2, 3, 5, 9, or 11. What about 7?
Testing for divisibility by 7
https://blog.plover.com/math/divisibility-by-7.html [blog.plover.com]
2018-08-01 16:18
There are well-known tests if a number (represented as a base-10 numeral) is divisible by 2, 3, 5, 9, or 11. What about 7?