Question

3) Find the prime factors (using prime factorisation method) of the following
numbers:
(a) 90
(b) 32
(c) 65
(d) 117​

Answer 1

a)3x3x5x2

b)2x2x2x2x2

c)5x13

d)3x3x13

hope this helps

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Answer 2

3.) Find using Prime factorisation for the following numbers -----›

(a.) 90 :------

=> 90 = 2 × 3 × 3 × 5

(b.) 32 :------

=> 32 = 2 × 2 × 2 × 2 × 2 = (2^5 )

(c.) 65 :------

=> 65 = 5 × 13

(d.) 117 :-----

=> 117 = 3 × 3 × 13