कथन 'किन्हीं भी दो पूर्ण संख्याओं का योग हमेशा एक पूर्ण संख्या होता है', पूर्ण संख्याओं के योग के किस गुण को दर्शाता है?

What is the remainder when (120)188 is divided by 7?

What is the unit digit of the product of all even numbers between 1 and 11?

When a number is divided by 136, it leaves a remainder of 36. If the same number is divided by 17, what will be the remainder?