Question

O Factorise the following numbers into primes.
(ii) 57
(11) 23
(vii) 765
(viii) 342
(1) 32
(vi) 208
(iv) 150
(ix) 377
(v) 216
(x) 559
$please \: slove \: in \: method$
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Answer 1

Answer:

ANSWER:

(i)

32 = 2 × 16

= 2 × 2 × 8

= 2 × 2 × 2 × 4

= 2 × 2 × 2 × 2 × 2

(ii)

57 = 3 × 19

(iii)

23 = 23 × 1

(iv)

150 = 2 × 75

= 2 × 3 × 25

= 2 × 3 × 5 × 5

(v)

216 =  2 × 108

 =  2 × 2 × 54

 =  2 × 2 × 2 × 27

 =  2 × 2 × 2 × 3 × 9

 =  2 × 2 × 2 × 3 × 3 × 3

(vi)

208 = 2 × 104

= 2 × 2 × 52

= 2 × 2 × 2 × 26

= 2 × 2 × 2 × 2 × 13

(vii)

765 = 3 × 255

= 3 × 3 × 85

= 3 × 3 × 5 × 17

(viii)

342 = 2 × 171

= 2 × 3 × 57

= 2 × 3 × 3 × 19

(ix)

377 = 13 × 29

(x)

559 = 13 × 43