Question

what is a counterexample for the conjecture?
conjecture:Any number that is divisible by 2 is also divisible by 4.
A.32
B.12
C.40
D.18

Answer 1

can u help me

Answer 2

the counter example involves finding a number that can be divided* by 2 but not 4.

work through each number and you will find one.

*everything is divisible by everything. the missing language here is that the "answer" must be a whole number.

Answer 3

is it 12

Answer 4

letter b

Answer 5

is 12 divisible by 4?

Answer 6

wait oh so then how do u no which could be divisibl by 4?

Answer 7

you're looking for a number that's divisible by 2, but not 4

you want to disprove the claim that "Any number that is divisible by 2 is also divisible by 4"

Answer 8

dude

12 = 4*3 = 2 *6

look for a number that 2 can go into but not 4.

Answer 9

ohh 18

Answer 10

am i right

Answer 11

correct, 18 is divisible by 2 (ie 2 is a factor of 18)

but not divisible by 4 (ie 4 is not a factor of 18)

Answer 12

thank u very much

Answer 13

np

Answer 14

cool!