Provided by: pyecm_2.0.2-4_all

#### NAME

```       pyecm - Number factorization with the Elliptic Curve Method

```

#### SYNOPSIS

```       pyecm [OPTIONS] [FACTORS]...

```

#### DESCRIPTION

```       pyecm  factors numbers using the Elliptic Curve Method (ECM). If FACTORS is given, it will
factor each one of these. Otherwise, it will factor from  standard  input.  You  can  type
"exit" to quit pyecm at any time.

-h, --help
Get help using pyecm.

--portion=num
Does  only  part  of  the work for factoring, corresponding to what fraction of the
total work the machine is doing. Useful for working in parallel.  For  example,  if
there are three machines: 1GHz, 1GHz, and 2GHz, print should be set to 0.25 for the
1GHz machines and 0.5 for the 2GHz machine. Implies -r and  -v.  -r  is  needed  to
avoid duplicating work and -v is needed to report results.

--ov=num
Sets the value of the internal parameter ov, which determines the trade-off between
memory and time usage. Do not touch if you do not know what you are  doing.  Please
read  all  the  documentation and understand the full implications of the parameter
before using this switch.

-n, --noverbose
Terse. On by default. Needed to cancel  the  -v  from  the  --portion  or  --random
switches. If both -n and -v are specified, the one specified last takes precedence.

-r, --random
Chooses random values for sigma, an internal parameter in the calculation.  Implies
-v; if you're doing something random, you want to know what's happening.

-v, --verbose
Explains what is being done with intermediate calculations and results.

```

#### EXAMPLES

```       pyecm 2^3-1 1000 "(3^13+2)*5"
Factor 7, 1000, then 7971625.

pyecm  Get factors from standard input.

```

#### AUTHOR

```       Written by Eric Larson and Martin Kelly.

```

#### REPORTINGBUGS

```       Please send bugs to Eric Larson <elarson3@uoregon.edu>.

pyecm 2.0.2                                   PYECM(1)
```