List of practice Questions

The total number of 4-digit numbers whose greatest common divisor with 54 is 2 , is ____.

The total number of 3-digit numbers, whose greatest common divisor with 36 is 2, is _______.

The total number of 5-digit numbers, formed by using the digits 1, 2, 3, 5, 6, 7 without repetition, which are multiple of 6, is