What name is given to a largest positive integer that divides given two positive integers?

If a and b are positive integers then

HCF and LCM of Positive integers

Product of a negative integer and a positive integer is a positive integer

What is the product of the smallest positive integer and the biggest negative integer? *

If x is a negative integer, -x is a positive integer.

The sum of two negative integers is a positive integer.

What will be the sign of the product if we multiply together (i) 8 negative integers and 1 positive integers? (ii) 21 negative integers and 13 positive integers? (ii) 199 negative integers and 10 positive integers?

Write a positive integer and a negative integer whose sum is a positive integer.