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The number 2 × 3 × 5 × 7 + 1 is1.  a prime number2.  not a prime, but power of a prime3. not a power of a prime, but a composite even number4.  not a power of a prime, but a composite odd number

Answer» Correct Answer - Option 1 :  a prime number

Prime number: A number which is divisible by either 1 or itself is called prime number.

Composite number: A number which is divisible by number\s other than 1 or itself is called as composite number.

Given number = 2 × 3 × 5 × 7 + 1 = 210 + 1 = 211

The number 211 is only divisible by 1 and itself,

∴ The given number is a prime number.



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