please only answer 1,4,5,6,7 and 8 question please help only useful answer if not a useful answer then get lost.
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1: (a) even numbers (b) odd numbers
4: prime numbers: 2, 3, 5, 7, 11, 13, 17, 19. Composite numbers: 4, 6, 8, 9, 10, 12, 14, 15, 16, 18.
5: 7
6: (i) 44=13+31
44= 3+41
(ii) 36= 5+ 31
36= 13+23
(iii) 24= 5+19
24=11+13
(iv) 18=7+11
18=5+13
7: (5, 7), (11, 13) and (17, 19).
8:(a)23
23 has only two factors, 1 and 23 therefore, it is a prime number.
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