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Show that 12''cannot end with the digit 0 or 5 for any natural number n. ​
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Show that 12''cannot end with the digit 0 or 5 for any natural number n.
​

User Andrew Edvalson
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Answer:

ano po di ko naiintindihan

User Pamput
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Answer:

If any number ends with the digit 0 or 5, it is always divisible by 5. If 12n ends with the digit zero it must be divisible by 5. This is possible only if prime factorisation of 12n contains the prime number 5.

Explanation:

User Rudy Bunel
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