S1 : 13231400 is a non terminating decimal.
S2 : A number pq where p and q are co-primes is terminating if q is of the form 2n.3m where n and m are non-negative integers.
S1 and S2 are false
1400 = 23×52×7
⇒ The denominator is not in the form of 2n5m.
Therefore, the given rational number has non- terminating decimal expansion.
Hence, S1 is true.
A number pq where p and q are co-primes is terminating if q is of the form 2m.5n.
Hence S2 is false.
The second statement is correct.