Basic things you should know about |
An integer is divisible by 3 if the sum of its digits is divisible by 3 - - An integer is divisible by 9 is the sum of its digits is divisible by 9.
How do you know if an integer is a multiple of 3 or 9?
Login to add questions to your reminder list
Sign up - its free!
The First & Only Encyclopedia of Self Help,
Self Improvement & Career Advice
250+ Easy-to-Follow Guides
5000+ Proven Tips
13 Types of Essential Skills Covered
Get The Value of 100+ Best Books in 1 Book.
502 Pages | $3.99 | PDF / EPub, Kindle Ready