Some stickers are in a packet.
If Adam puts them into groups of 7, there are 4 stickers short.
If Adam puts them into groups of 5, there are 3 stickers short.
Find the smallest possible number of stickers in a packet.
Multiples of 7: 7, 14, 21
Multiples of 7 (-4): 3, 10, 17
Multiples of 5: 5, 10, 15, 20
Multiples of 5 (-3): 2, 7, 12, 17
Smallest possible number of stickers in a packet = 17
Answer(s): 17