If $a=-b \in \mathbb{Z}, $
Then $hcf(a, b)=|a|=|b|$, right?
2026-03-30 03:36:21.1774841781
Highest common factor of integers which are the same.
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Yes, because the highest factor of a number is always the number itself (number/number = 1), meaning that if you have 2 numbers a, b so that a = b, their highest factor will be a and b (respectively), which are equal by definition.