# N7

Question: Identify which type of number the following examples belong to:

(Hint: some can belong to more than one)

a)5

b)π

c)√11

d)8/3

a) 5 is a whole number, so it is an integer. Furthermore, all integers are also rational numbers and real numbers, so 5 falls into these categories as well. Lastly, 5 is only divisible by 1 and itself, so 5 is also a prime.

b) Real and irrational

c) $\sqrt{11}$ is not a whole number, and it cannot be written as a fraction, so it is irrational. Also, like all numbers on the number line, it is a real number.

d) $8/3$ is a fraction, so it is a rational number. Like all rational numbers, it is also a real number.