Question

Find the prime factorisation of the following.

(a) 78 (b) 120 (c) 256 (d) 84 (e) 441

(f) 240 (g) 2304 (h) 3125 (i) 1260​

Answer 1

Answer:

a ) 78 = 2 x 39

b )120 = 2 x 2 x 2 x 3 x 5

c )256 = 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2

d ) 84 = 2 x 2 x 3 x 7

e ) 441 = 3 x 3 x 7 x 7

f ) 240 = 2 x 2 x 2 x 2 x 3 x 5

g ) 2304 = 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 3 x 3

h ) 3125 = 5 x 5 x 5 x 5 x 5

I ) 1260 = 2 x 2 x 3 x 3 x 5 x 7