Question

Howmany digits are there in (2^17) *(3^2)*(5^14)*7

Answer 1

Answer:

See if I multiply 2 and 5, I will get 10. So 214 and 514 when multpilied will give 1014 which has 14 zeroes. All that remains to be multiplied is 8 , 9 and 7, which is three digits when done. I already had 14 digits. In total 17 digits