Answers

2016-05-07T18:48:33+05:30
A prime number has only two factors, i.e. 1 and the number itself. The result obtained is 15015. 15015 comes in other tables such as 5 and 15. Hence it is a composite number.
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2016-05-07T19:54:06+05:30
This is by arithmetic formula
every composite numbers can be written in product of primes
here all are rimes given
that means wen we multiply we get composite number
therefore 3*5*7*11*13 is a composite number

no need to multiply and struggle hard just remember statement buddy
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plz mark it as brainlest
OH! YES THANKS FOR ANOTHER TIP !!!
hmm