# PrimOmatic: the prime numbers checker

 Related Links Interesting pages: Methods for finding small Prime Numbers Number Cyclopedia Wikipedia Numbers A Number 4 each day Numbers' History Fibonacci Numbers Dat-O-matic Magic Star Numbers Barcode Numbers 80-20 rule Pacioli Number Buy a Number

Prime Number?

Prime numbers are positive integers which have no divisors other than 1 and themselves. Therefore, the first 10 prime numbers are 2, 3, 5, 7, 11, 13, 17, 19, 23 and 29. Except for 2, all primes are odd numbers. PrimOmatic calculator will help you check if a number entered is prime, or eventually find out the factors of that number along with its consecutive closest prime!

Factors

The next closest prime
Some Peculiar Factorizations

23,456,789 is prime! - G. Sarcone
888,888,888 = 98,765,432 x 9
111,111,111
= 12,345,679 x 9
12,345,678,987,654,321 = 12,345,679 x 12,345,679 x 81

The largest known Prime Number

On January 7th, 2016, Dr. Curtis Cooper, a professor at the University of Central Missouri, discovered the 49th known Mersenne prime, 274,207,281-1, a 22,338,618 digit number. This find shatters the previous record prime number 257,885,161-1 of 17,425,170 digits.

© G. Sarcone, www.archimedes-lab.org

 You can copy the javascript program of the PrimOmatic... Feel free to modify or improve it! In exchange, we would appreciate receiving any comment or suggestions concerning this script. Send a comment Recommend this page Digg this story!

Home