explain why 3×5×7+7 is a composite number?
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Answer:
3×5×7+7=105+7=112. 112 is an even number and is therefore a composite number. also, 112 is divisible by other numbers such as 2,4,7,8,14,16,28 and 56 apart from itself 112 and 1
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Explanation:
composite no are that having more than two factor
take 7 commen
7[3×5+1]
7[16]
7×16
it has 7 as factor
it has 16 as factor
it has 1 as factor
and if we multiple 7×16=112
so 112 is also a factor of 3×5×7+7
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