Simplifying surds | Exit Quiz | Oak National Academy

A surd is in its simplest form when the ___ is an integer with no perfect square factors greater than 1.

Answer explanation

A surd is in its simplest form when the radicand is an integer with no perfect square factors greater than 1.

Which of these surds are in their simplest form?

Answer explanation

8 has a square factor of 4 and 64 has a square factor of 8.

• 4

• 6

• 24

• 36

• 4

• 7

• 16

• 28

• 2

• 5

• 6

• 12