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GMP-ECM (Elliptic Curve Method)
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[#21656] Prime numbers as input not detected
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Date:
2018-03-09 20:36
Priority:
3
State:
Open
Submitted by:
Ken Takusagawa (
kenta
)
Assigned to:
Nobody (None)
Category:
none
Group:
none
Resolution:
none
Summary:
Prime numbers as input not detected
Detailed description
If a large prime is given as input to ecm, it is not rejected or warned; it futilely proceeds trying to factor it: echo 2^521-1 | ecm -c 0 -I 1 1e5 It would be nice to have a feature to check for primality at the beginning.
If a large prime is given as input to ecm, it is not rejected or warned; it futilely proceeds trying to factor it:
echo 2^521-1 | ecm -c 0 -I 1 1e5
It would be nice to have a feature to check for primality at the beginning.
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Date: 2018-03-09 21:11
Sender:
Paul Zimmermann
please see option -primetest
No Changes Have Been Made to This Item