Question

Find the square root of 784 using the prime factorization method.

Answer 1

28

Explanation:

784 can be divided by two 4 times.

This means that there are two pairs of 2s that can come out the radical.

2*2 = 4.

then now we have 49 left inside and we know that this is 7 squared, meaning that there is a pair of 7 inside the radical.

7 comes out and now we have 7 times 4 which is 28.