Question

Test the number for divisibility by 2,3,5,6,3 and 10

1. 305 2.1845

Answer 1

Do you know the shortcuts for these divisors?

Answer 2

yea one sec
...

Answer 3

2 is even
3 digital root of 3, 6, or 9
5 ends in 5 or 0
6 digital root of 3, 6, or 9 and is even
10 ends in 0

Answer 4

1. 5
2. 5, 3

Answer 5

2 if the number is even
3 if the sum of its digits is divisible b y 3
5 if it ends with 5 or 0
6 if it is even and divisble by 3
9 if its sum of its digits are divisible by 9
10 if it ends with 0

Answer 6

lol