True. A prime number’s units digit cannot be 4 because numbers ending in 4 are divisible by 2, making them even. All even numbers other than 2 are composite, disqualifying them from being prime.
Class 6 Mathematics Chapter 5 Prime Time question answer
Class 6 NCERT Ganita Prakash Chapter 5 Prime Time
The statement is true because numbers ending in 4 are even. A prime number has only two divisors: 1 and itself. All even numbers are divisible by 2, making them composite, except for the number 2 itself. Since 2 is the only even prime number, any number with a units digit of 4 cannot be prime. For example, numbers like 14, 24, and 34 all have divisors other than 1 and themselves.
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