Question

RPUSUI. LUI
their H.C.F.
Exercise 5.3
1. Find the L.C.M of the given numbers by prime factorisation method :
(i) 28, 42
(ii) 36, 40, 126 (ii) 108, 135, 162 (tv) 24, 28, 196.
2. Find the L.C.M. of the given numbers by division method:
(1) 6, 8, 45
(ii) 24, 40, 84 (11) 24, 36, 45, 54 (iv) 20, 36, 63, 77.
3. Find the least number which when increased by 15 is exactly divisible by 15 20
and 48.
4. Find the least number which when divided by 24, 36, 45 and 54 leaves a remainder
of 3 in each case.​

Answer 1

Answer:

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