978403
This number is a prime.
Single Curio View: (Seek other curios for this number)
978403 = 9^n+8^n+7^n+6^n+5^n+4^n+3^n+2^n-1^n, (case n=6). The smallest emirp of this form. [Bajpai]
Submitted: 2013-04-22 18:44:00; Last Modified: 2020-07-29 02:03:03.
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