why 5×7×11+11 is a composite number?
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Answered by
7
Every number which has more than 2 different factors is a composite number. Now since 5*7*11+11 has more than two different factors. So it's a composite number
Answered by
10
Sol : 5 x 7 x 11 + 11
By taking 11 as common,
= 11 ( 5 x 7 + 1 )
= 11 ( 35 + 1 )
= 11 x 36
= 11 x 2 x 2 x 3 x 3.
Since, ( 5 x 7 x 11 + 11 ) can be expressed as a product of prime numbers,so it is a composite number.
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By taking 11 as common,
= 11 ( 5 x 7 + 1 )
= 11 ( 35 + 1 )
= 11 x 36
= 11 x 2 x 2 x 3 x 3.
Since, ( 5 x 7 x 11 + 11 ) can be expressed as a product of prime numbers,so it is a composite number.
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