Which of the following number is divisible by 4?
4348
Divisibility rule of 4: a number is divisible by 4 if the number formed by its last two digits is divisible by 4.
1734 → 34 ÷ 4 = 8.5 (not divisible)
2342 → 42 ÷ 4 = 10.5 (not divisible)
4348 → 48 ÷ 4 = 12 (divisible)
1570 → 70 ÷ 4 = 17.5 (not divisible)
Hence, 4348.
If the number 6484a6 is divisible by 8, then find the least value of a.