Which of the following numbers is divisible by 6?

1. 560324

2. 650374

3. 798653

4. 750972

A number is divisible by 6 if it is divisible by both 2 and 3.

1. 560324: even. Sum = 5 + 6 + 0 + 3 + 2 + 4 = 20, not divisible by 3.

2. 650374: even. Sum = 6 + 5 + 0 + 3 + 7 + 4 = 25, not divisible by 3.

3. 798653: ends in 3, odd. Not divisible by 2.

4. 750972: even. Sum = 7 + 5 + 0 + 9 + 7 + 2 = 30, divisible by 3. ✓

Hence, option 4 is the correct option.