answersLogoWhite

0

If the last digit doubled subtracted from the rest is a multiple of 7, the whole number is divisible by 7.

Example: 686

68 - 12 = 56

56 is divisible by 7.

686 is divisible by 7.

User Avatar

Wiki User

11y ago

Still curious? Ask our experts.

Chat with our AI personalities

ProfessorProfessor
I will give you the most educated answer.
Chat with Professor
ReneRene
Change my mind. I dare you.
Chat with Rene
ViviVivi
Your ride-or-die bestie who's seen you through every high and low.
Chat with Vivi

Add your answer:

Earn +20 pts
Q: How do you work out what is divisible by 7?
Write your answer...
Submit
Still have questions?
magnify glass
imp