If a number is divisible by 3 , then the sum of the digits of the number should be multiple of 3. Sum of the digits of the number, 8703572=8+7+0+3+5+7+2=32 Sum of the digits of 8703541 =8+7+0+3+5+4+1=28 Sum of the digits of 8703593 8+7+0+3+5+9+3=35 Sum of the digits of 8765001 =8+7+6+5+0+0+1=27 ∵ 27 is the multiple of 3 ∴ 8765001 is divisible by 3.