Question

Which set is closed under the operation multiplication?

A.
{0.5, 1, 2}

B.
{1, 2, 4}

C.
{0}

D.
{1, 2, 3, 4, 5}

Answer 1

Most likely A

Answer 2

or B

Answer 3

think of the factors for each

Answer 4

A, since any two numbers you multiply in the set give you an answer of a number that is also in the set

Answer 5

Okay! Thank you both!!