Answer:
Hello there! Your answer here is 13. We can find our solution by factorization, or breaking each number down into smaller numbers that, multiplied together, give us the original number.
The factors of 26 are 1, 2, 13, and 26.
The factors of 52 are 1, 2, 4, 13, 16, and 52.
The factors of 65 are 1, 5, 13, and 65.
The highest common factor of 52, 26, and 65 is 13.