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Number Theory and Divisibility - Class VIII

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$20$ is written as the product of primes as :
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A
${2\times 2\times 5}$
💡 Explanation:

To write a number as product of its primes, we divide it by various prime numbers $ 2, 3, 5, 7 $ etc one by one and check by which prime numbers it is divisible with and how many times.

Hence, $ 20 = 2 \times 10 = 2 \times 2 \times 5 $          

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