Question

Property 4. The HCF of two coprime numbers is
Sol
Exercise 4.3
LO
1. Find the HCF of the following by the prime factorisation method. .
a 35 and 50
(b) 45 and 36
(c) 40 and 70
( 45 and 60
(e) 70, 105, 64 ( 16, 24 and 60
2. Find the HCF of the following by using the short division method.
(a) 30 and 96
(b) 50 and 54
(c) 84 and 144
(d) 98 and 154
(e) 28, 56 and 84 105, 84 and 42
(g) 120, 110 and 90 (h) 120, 108 and 96 (1) 144, 112 and 80
© 154, 132 and 110
1
3. Find the HCF of the following by the long division method.
(a) 84, 144
(b) 1092, 966 ( 120, 168
(e) 98,154
(9) 216, 288 (g) 180, 450
0 70, 147
1356, 226 (R) 513, 405
(d) 780, 884
(h) 171,285
(D 722, 1406
LAST COMMON MULTIPLE (CM)​

Answer 1

Answer:

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