यदि कोई संख्या दो सह-अभाज्य (co-prime) संख्याओं से विभाज्य है, तो वह हमेशा विभाज्य होगी:

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?