Hi, there was this question on my AS maths paper and me and my class cannot agree on how to answer it... it went like this.
Prove that every prime number above 5 when raised to the power of 4 will always end in a 1
n is a prime number
So prove n^4 always ends in a 1
If anyone can prove that to me then thankyou. In my exam in a panic I attempted proof by exhaustion but that wont work since there is no range given.
Prove that every prime number above 5 when raised to the power of 4 will always end in a 1
n is a prime number
So prove n^4 always ends in a 1
If anyone can prove that to me then thankyou. In my exam in a panic I attempted proof by exhaustion but that wont work since there is no range given.