find the number of zeroes:

Find the number of zeros at the end of 100!.

Find the numbers of zeroes between the decimal point and first significant digit of (0.036)^16 , where log 2=0.301 and log 3=0.477 .

If a number contains 3 zeroes at the end, how many zeros will its square have ? What do you notice about the number of zeros at the end of the number and the number of zeros at the end of its square ? Can we say that square numbers can only have even number of zeros at the end ?

If log2=0.301 and log3=0.477, find the number of integers in the number of zeroes after the decimal is 3^(-500) .

Find the number of non-zero integral solutions of the equation |1- i|^x= 2^x .

What will be the number of zeroes in the square of the following numbers? 400

What will be the number of zeroes in the square of the following numbers? 60

Find the number of solutions of x + y + z + w = 20 under the following conditions:(i) zero values of x,y,z,w are included.

In which of the following numbers all zeroes are significant?