If there are two root signs after the prime factor is decomposed, ask them.

For example: a=b*b*c then the root number a=b root number c note: there is a difference between the root number and the root number.

The root number 2 is still equal to the root number 2 because 2 is a prime number.

Root number 9=3 Because 9=3*3* 1 (1 should be omitted, so it is convenient to write it out), the root number 9=3 Root number 1=3.

For another example, the root number 48=4 and the root number 3 is 48=2*2 * 2 * 3, so the root number 48=2*2, the root number 3=4 and the root number 3.

The root number 2 is an irrational number (infinite cyclic decimal), so it is usually to take the divisor 1.4 14 (and taking the divisor is generally required by the topic, so don't take it casually) or to keep the original root number 2, root number 3, root number 5, root number 7, root number1and so on.

Hope to adopt it, write it all by hand