Simplifying 6^602 (mod 61) can be done using Fermat's Little Theorem, and it's congruent to -25 (mod 61). using Bzout's Theorem, and it's congruent to -25 (mod 61). using Bzout's Theorem, and it's congruent to -36 (mod 61). using Fermat's Little Theorem, and it's congruent to -36 (mod 61). using Fermat's Little Theorem, and it's congruent to -11 (mod 61)