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Last updated on December 2nd, 2024

Is 247 a Prime Number?

Q: What is 247 divisible by?

247 is divisible by 1, 13, 19 and 247. These are the factors of 247. Factors are numbers that divide the given number without any remainder.

Q: What prime number comes after 247?

The prime number after 247 is 251. Prime numbers are numbers with two factors

Q: What is the biggest prime factor of 247?

19 is the biggest prime factor of 247. The prime factors are the prime numbers themselves.

Q: Why isn’t 247 a prime number?

247 is not a prime number because it has four divisors. Numbers with two divisors are prime.

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Do you get confused while checking if a number is prime? Determining a prime number is easy. They are used in encryptions. Here, this article checks if 247 is a prime.

Why is 247 not a prime number?

Since 247 has four factors, it is not a prime number. The basic methods used to check if a number is prime are the counting divisors method, divisibility method, prime number chart, and prime factorization.

$is 247 a prime number$

Using the Counting Divisors Method

This method will tell the total number of divisors a number has.

The divisors of 247 = 1, 13, 19, 247

Therefore, 247 is not a prime number.

Using the Divisibility Test Method

If a number has more than two factors, it is composite. Here, the factors of 247 are 1, 13, 19, and 247.

Using Prime Number Chart

This method will check if a number is prime or not with the help of a prime number chart. Only if the number is seen in the chart, then it's a prime.

Using the Prime Factorization Method

This method expresses the product of prime factors in its exponential form.

The prime factorization of 247 is → 13¹× 19¹

Hence, the prime factors of 247 are 13 and 19

Common Mistakes to Avoid When Determining if 247 is a Prime Number

FAQs : ‘Is 247 is a Prime Number’

1.What is 247 divisible by?

2.What prime number comes after 247?

3.Is 247 prime or composite?

4.What is the biggest prime factor of 247?

5.Why isn’t 247 a prime number?

Glossaries for ‘Is 247 a Prime Number’

Prime Number: A number with two positive numbers as its only factors

Composite Number: A number with more than two positive numbers as factors

Prime Factorization: Method of expressing the product of prime factors in exponential form.

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Hiralee Lalitkumar Makwana

About the Author

Hiralee Lalitkumar Makwana has almost two years of teaching experience. She is a number ninja as she loves numbers. Her interest in numbers can be seen in the way she cracks math puzzles and hidden patterns.