No, 25 is a composite number because it can be divided by 1, 5, and 25.
Is 25 a prime number?
Practice Questions
Q1
Is 25 a prime number?
Yes
No
Only if it's odd
Only if it's even
Questions & Step-by-Step Solutions
Is 25 a prime number?
Step 1: Understand what a prime number is. A prime number is a number greater than 1 that can only be divided by 1 and itself without leaving a remainder.
Step 2: Check if 25 is greater than 1. Yes, 25 is greater than 1.
Step 3: Find the divisors of 25. The numbers that can divide 25 without leaving a remainder are 1, 5, and 25.
Step 4: Determine if 25 has any divisors other than 1 and itself. Since 25 can also be divided by 5, it has a divisor other than 1 and 25.
Step 5: Conclude that since 25 has divisors other than 1 and itself, it is not a prime number. Instead, it is a composite number.
Prime Numbers – A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself.
Composite Numbers – A composite number is a natural number greater than 1 that has more than two positive divisors.
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