Divisor 6329

Prime Number:
Yes!
Divisibility test:
The "Max Palmer Test"
Test Discovered by:
Matt Parker
Date:
11/11/2024

The "Max Palmer Test" for Divisibility by 6329

To determine if any number is divisible by 6329, apply the "Max Palmer Test":

  1. If your number ("X") has 7 digits or more, separate the last (smallest) 6 digits from the rest. This makes two smaller numbers, call them Left and Right (note: don't add in trailing zeros to L). If there are fewer than 7 digits, L = 0 and therefore R = X.
  2. Multiply L by 18 and add to R.
  3. Take that result and cross off its final digit (units). Take this new number and add 633 times the digit you just crossed off. Call this final result "Y".
  4. Y will be much smaller than X, but we have preserved divisibility by 6329. That is, your original number is divisible by 6329 if (and only if) Y is. Now that it's much smaller, with basic knowledge of your 6329-times tables, it should be easy to visually see if Y is divisible by 6329. If the Y is still much larger than 6329, the above process can be repeated until it does reduce to within small multiples of 6329.

Easy!