Question

Mrs. Potter divides the Grade 8 class of 21 students into few equal groups. The number of

students in each group is a prime number.
a) In how many ways can Mrs. Potter divide the class?

Answer 1

Explanation:

list of prime numbers from 1-21

2,3,5,7,11,13,17,19

he has 21 students

the only numbers he can divide by is 3 and 7

21/3=7

21/7=3