1997的阶乘,答案后有多少个零?

问题描述:

1997的阶乘,答案后有多少个零?

1997!=4151569143493960745607279841843248999726486376453717843120678754117274827423732 16638691256113207494957942375768997904995112777631828043396236890509226514770029 702111511416294489984297168442389...