Yeah, the first three are supposed to be one series. Sum of All Fears was a reboot, as was Shadow Recruit.

I thought this was a joke, but you’re right. Fuckin tragic, yet highly entertaining.

It goes like this

1. create 2 distinct numbers by isolating the last digit from the other. For example, 154 becomes 15 and 4.

2. double the number derived from the last digit. So, the four becomes 8.

3. subtract from the number derived from the preceeding digits. 15 - 8.

4. the resulting number is 7. Seven is divisible by 7, so we know 154 is divisible by 7.

Oneteen Oneteen

Edit: after doing a bit of research, I’m changing this to Firsteen Firsteen