Help System (web edition)

Finding the prime factors of an integer:
Examples:
  30(10:factors)=2*3*5
  144(dec:factors)=2^4*3^2
  100000000000000000000(bin:factors)=2^20
  10000(7:factors)=7^4
ACCURACY=30
Max. number to be factored is 2^63=9223372036854775808.  ACCURACY=30
  2^63 9223372036854775808(10:factors)=2^63
  2^63-1 9223372036854775807(10:factors)=7^2*73*127*337*92737*649657
  2^61-1 2305843009213693951(10:factors)=2305843009213693951 (Mersenne prime)
  1000000000000000001(10:factors)=101*9901*999999000001
  65520^2-1= 4292870399(dec:factors)=65519*65521 (both primes!)
  9223371873002223329(dec:factors)=3037000453*3037000493

  C = More information on numerical conversions