Question

The number of common prime factors of 462, 378 and 546 is
(A) 1
(B) 2
(C) 3
(D) 4

Answer 1

Answer:

1,2,3 all are common factors dear ,because they all are divisible by 1,2,3

Answer 2

Answer:

option (C) is correct answer

Step-by-step explanation:

the common factors of 462 , 378 , 546 are

1

2

3

hence option c is correct answer