Explain why 2x3x7+7 is composite no.
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answer for the given problem is given
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= 7(2×3 ×1 +7)
= 7( 13 )
= 91
= 91 = 1× 7 ×13
are the factor of 91.
then which number have more than 2 factor are called composite number .
hence,
2×3×7 +7
are composite number.
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