Self Maths Puzzle Numerical Ability Probability

What is the max. Possible integer value of p if
789*.........135=n720^p

1. 30
2. 31
3. 32
4. 33

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Self Other Question

If s1= {1,2,3,4,.....,23} & s2={207,208,209,210,.....,691}, how many elements of the set s2 are divisible by at least four distinct prime numbers that are elements of the set s1?

1.9
2.8
3.11
4.12 Each face of a cubical dice is numbered with a distinct no from among the first six odd no, such that the sum of the two no on any pair of opposite sides is 12, if ten such dices r thrown simultaneously, then find the probability that sum of no that turn up is exactly 55