Question

which of the following number is not divisible by 2? and why? 66,122,180,63

Answer 1

because it ends in an odd digit.... 3....

Answer 2

you may divide each option by 2,
and see which option leaves a remainder

Answer 3

If you get a remainder of 0, we say the number is divisible by 2; otherwise NOT divisible by 2.

Answer 4

To check whether the first option `66` is divisible by 2 or not, divide `66` by 2 and see if you get a 0 remainder :

_________
2 ) 66

Answer 5

@katherynB still here ? :)

Answer 6

yess! thank you! I was folling your steps and divided 2

Answer 7

*following

Answer 8

good to hear back :) was thinking you slept off or something haha!

Answer 9

so do you know how to divide two numbers and get `quotient` and `remainder` ?

Answer 10

lol. no Im trying to understand the work as you were writing to me.. thanks again! :)

Answer 11

may be I'll work first option and let you work remaining options :

`33` quotient
_________
2 ) 66
66
---------
`0` remainder

Answer 12

Since the remainder when dividing 66 by 2 is `0`, 66 is an even number.
Similarly you may check other options

Answer 13

is it the same when its by 3? which is not divisible by 3? 783, 909,504 & 895

Answer 14

I got the number 909. I divided 3 by every one of them..

Answer 15

Exactly !

Answer 16

909 looks divisible by 3

Answer 17

how did u get 909 ?

Answer 18

i can check if there is a mistake if you show your full work :)

Answer 19

i divided by 3..

Answer 20

and what did u get as remainder ?

Answer 21

not divisible by 2 63 odd number

Answer 22

i actually used a calculator to divide each and one of them by 3

Answer 23

thank you @triciaal

Answer 24

thats fine, but how did u figure out 909 is not divisible by 3 ?
cuz thats wrong

Answer 25

http://www.wolframalpha.com/input/?i=Is+909+divisible+by+3+%3F