Question

20. Which of the following is a prime factor of
168?
(1) 2 x 2 x 6x7
(2) 2 x 4x3x7
(3) 2 x 2 x 2 x 21
(4) 2 x 2 x 2 x 3 x 7​

Answer 1

Answer:

2*2*6*7=168

Step-by-step explanation:

=2*2*6*7

=4*6*7

=24*7

=168