write divisibility rule
Answers
2....If last digit is 0,2,4,6 and 8..
3... If the sum of digit is divisible by 3...
4...If the last two digit is divisible by 4....
5... If the last digit is 0,5
6... If the no. is divisble by 2 and 3....
7...cross of last digit,double it and subtract.Repeat if u want.if new no. is divisible by 7...
8...If last three digit is divisible by 8..
9...If the sum of digit is divisible by9...
10 If the last digit is 10..
11.. substract the last digit from the no. formed by the remaining digits.. if new no. is divisible by 11...the original no. is divisible by 11..
12.. If the no. is divisible by 3 and 4...
DIVISIBILITY BY 2
A given no. Is divisible by 2 only when it's unit digit is 0,2,4,6,8.
E.g.→ Each of the no.s 60, 72, 84, 9v6, 108 is divisible by 2.
DIVISIBILITY BY 3
A given no. Is divisible by 3 only when the sum of its digits is divisible by 3.
E.g.→ 2727 is divisible by 3 because it digits sum up to give 18 which is divisible by 3.
DIVISIBILITY BY 4
A given no. Is divisible by 4 only when the no. Formed by its last two digits is divisible by 4.
E.g.→ 41328 is divisible by 4 because last two digits (28) is divisible by 4.
DIVISIBILITY BY 5
A given no. Is divisible by 5 only when it's unit digit is 0 or 5.
E.g.→ Each of the no.s 6740, 3635, 274490 is divisible by 5.
DIVISIBILITY BY 6
A given no is divisible by 6 only when it is divisible by both 2&3.
E.g.→ 48 is divisible by 6 because it is divisible by 2 and 3 both.
DIVISIBILITY BY 7
In the picture
DIVISIBILITY BY 8
A given no is divisible by 8 only when the no formed by its last three digits is divisible by 8.
E.g.→ 25064 is divisible by 8 because it last three digits (064) is divisible by 8.
DIVISIBILITY BY 9
A given no is divisible by 9 only when the sum of its digits is divisible by 9.
E.g.→ 27981 is divisible by 9 because sum of its digits is 27 which is divisible by 9.
DIVISIBILITY BY 10
A given no is divisible by 10 only when the last digit of the no is 0.
E.g.→ Each of 25860, 35480, 25470 is divisible by 10 because it's last digit is 0.
DIVISIBILITY BY 11
A given no is divisible by 11, if the difference between the sum of the digits at odd place and the sum of its digits at even place, is either 0 or a no. divisible by 11.
E.g.→ 121 is divisible by 11 because the difference of sum of its digits at odd place (1+1=2) and the sum of its digits at even place(2) is 0(2-2=0).
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