Querying Prime Numbers
Prime numbers are whole numbers greater than 1 whose only factors are 1 and itself.
Click on the tab of the from to choose among the different Query Forms.
Tip: Hold the Alt key and then press the
number to simulate a click on the form to switch to. For example, press
Alt + 3 to switch to the form titled
"Order of Prime Numbers".
-
Primality
-
Primes in a Range
-
Order of Prime Numbers
Error:
Invalid Input
The number is too low.
The number is higher than 1000000 which is the upper bound.
Prime
Order:
This is the prime number.
Properties:
Twins:
and
Cousins:
and
Palindromic:
Yes
No
Emirp:
Yes, is also prime.
No
Balanced:
Yes, the previous prime number and the next prime number average to .
No
Mersenne:
Yes, this is because wherein is also prime.
No
Composite
Semiprime
This is an example of a semiprime as this has two prime factors.
Sphenic
This is an example of a Sphenic number as this has three distinct prime factors.
Triprime
This is an example of a triprime as this has three prime factors.
Factors
Prime Factorization
Prime Numbers in Between and
Primes Found:
None
The numbers and have a gap greater than 5000 which is not allowed.
Either number or is not in the range of 2 to 1000000.
The number is not below the maximun 78498.
The number is too low.