8.1

Part of 1998 All-Russian Olympiad Regional Round

Problems(1)

n-digit numbers M , N - All-Russian MO 1998 Regional (R4) 8.1

Source:

n

-digit numbers M and N such that all digits

M

N

digits are odd, every digit from

0

9

occurs in decimal notation M or N at least once, and

M

is divisible by

N

number theoryDigits