Answer to Question #107812 in Algebra for Mike

Question #107812

Justify 7|280

Expert's answer

Since, "280=2\u00d72\u00d7\u00d72\u00d75\u00d77"

"=2^3\u00d75\u00d77" , is a prime factorization of 280 and 7 is one of the prime factor of 280.

Hence ,"7\\mid (2^3\u00d75\u00d77)"

"\\therefore \\ 7\\mid 280."

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