Answer:
a) 670
b) 192, 670
c) 670
Explanation:
670 is divisible by 5 because 670/5=134, also because 670 ends in 0
192 and 670 is divisible by 2 because they both end in even numbers, and also 192/2=96, 670/2=335
670 is divisible by 10 because 670/10=67, and it ends in a 0 as well