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Byju's Answer
Standard VIII
Mathematics
Divisibility by 2
Find the leas...
Question
Find the least number which when divided by
16
,
18
,
24
leaves remainder
4
but there is no remainder when it divide by
7
.
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Solution
L
C
M
of
16
,
18
,
24
is
720
Hence the no. should be in the form of
720
k
+
4
As the no.s divisible by
7
So,
720
k
+
4
=
7
k
1
⟹
k
1
=
102
K
+
6
k
+
4
7
Possible values such that
6
k
+
4
is divisible by
7
k
=
4
Hence the required no. will be
720
×
4
+
4
=
2884
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