Without using a calculator, how can I know if 5 is a divisor of 3^444 and/or 4^333?
Fermat's Little theorem, how else can you say anything about anything?
Did you learn about prime factorization in grade school?
true, i misread it.
Well, you should have! Any number can be written, in a unique way, as a product of primes. How would 3444 be written as a product of primes? Any 5s in there? (Hint: 3 and 5 are prime numbers.)
How would 4333 be written as a product of primes? (Hint: 4 is not a prime number but 2 is.)
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