Question

Explain whether 3x 12 x 101 + 4 is a prime number or a composite number.

Answer 1

3 x 12 x 101 + = 4(3 x 3 x 101 + 1)

=4 (909 + 1)

=4(910)

= 2 x 2 x 2 x 5 x 7 x 13

= a composite number :. [Product of more than two prime factors]