Question

Kyra has a rock collection. When she puts her rocks into 2 equal piles, there are no rocks left over. When she puts her rocks into 3 equal piles, there are still no rocks left over. When she puts her rocks into 4 equal piles, there are still no rocks left over. How many rocks could Kyra have?

Answer 1

12÷2=6 (whole number)
12÷3=4 (whole number)
12÷4=3 (whole number)

the answer is 12 rocks

Answer 2

12 because 12 is a multiple of all three numbers.