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    What is a prime number? And why is 21,000 not a prime number?

    Kamendra kumar 14th Dec, 2022
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    Kamendra kumar 14th Dec, 2022

    Any number having 1 and itself as its only 2 factors are known as a prime number. 21000 is not a prime number because it has more than 2 factors like 2, 3, 5, 7 etc.

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