It can be shown (see exercises 4448) that an integer is
Chapter 4, Problem 4.155(choose chapter or problem)
It can be shown (see exercises 4448) that an integer is divisibleby3if,andonlyif,thesumofitsdigitsisdivisible by 3. An integer is divisible by 9 if, and only if, the sum of its digits is divisible by 9. An integer is divisible by 5 if, and only if, its right-most digit is a 5 or a 0. And an integer is divisible by 4 if, and only if, the number formed by its right-most two digits is divisible by 4. Check the following integers for divisibility by 3, 4, 5 and 9. a. 637,425,403,705,125 b. 12,858,306,120,312 c. 517,924,440,926,512 d. 14,328,083,360,232
Unfortunately, we don't have that question answered yet. But you can get it answered in just 5 hours by Logging in or Becoming a subscriber.
Becoming a subscriber
Or look for another answer