Question

15 In which of the following expressions, prime factorisation has been done?
a. 48=2x2x3x4
b. 56=2x4x7
c. 66=2x3x11
d. 180=2x3x5x6​

Answer 1

Answer:

C

Step-by-step explanation:

(a) 4 is not a prime number

(b) 4 is not a prime number

(c) 2,3 and 11 are prime numbers

(d) 6 is not a prime number