explain why 3*5*7+7is numbr composite a
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3×5×7+7
=7 (3×5+1)
7 (16)
Hence this no. is product of two numbers other than itself. so we can say that it's a composite no.
=7 (3×5+1)
7 (16)
Hence this no. is product of two numbers other than itself. so we can say that it's a composite no.
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