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Which number is not a composite number 13-63-61 or 31?
13 prime 63 composite 61 prime 31 prime Well the question should have been either, Which one of these numbers is not a composite number? Or, Which one of these numbers is not a prime number?
What is a prime number above 13?
prime numbers above 13 = 17, 19, 23, 29, 31,...
Does a prime number always equal 1?
No prime number can equal 13, 5, 31, 7, 53 and etc.
Why is 31 not a prime number?
31 is a prime number
What number go into 31 evenly?
1 and 31 (31 is a Prime number).
Is 403 a prime or composite number?
403 is composite. It can be evenly divided by 13: 403/13 = 31.
Is 31 prime or not?
31 is a prime number
Which number is prime 31 33 35 or 39?
The only prime number among the options given is 31. A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself. In this case, 31 cannot be divided evenly by any other number except for 1 and 31, making it a prime number.
What are the prime factors of 31?
31 is prime so 31 is the prime factorization of 31
How do you work out the prime number of 31?
31 is already a prime number.
What number is not an prime number 17 39 23 31?
39 is not prime because 13 and 3 are factors of it. To be prime the number cannot have any factors except itself and 1.
What is another pair of emirps between 10 and 100?
Another pair of emirps between 10 and 100 is 13 and 31. An emirp is a prime number that results in a different prime number when its digits are reversed. Both 13 and 31 are prime, making them a valid pair of emirps.
