Find the exponent of 80 in 200!.

Find the exponent of 3 in 100!.

Find the exponent of 3 in 100!

Find the exponent of 12 in 50!

the exponent of 15 in 100!, is

The exponent of 7 in 100!, is

The exponent of 12 in 100! is

In the expansion of (x+y)^(n) , if the exponent of x in second term is 10, what is the exponent of y in 11th term.

In the 10th term of (x+y)^(n) , the exponent of x is 3, then the exponent of x in the 7th term is __________