Question

Show that 52563744 is divisible by 24.

Answer 1

for a number to be div by 3, the sum of its digits must be div by 3.. so 52563744 = 5+2+5+6+3+7+4+4 = 36.. 36 is div by 3, so the number is also div by 3.. since 52563744 is div by both 3 and 8, the number is div by 24..