<s>
In	O
computational	O
number	O
theory	O
,	O
the	O
Adleman	B-Algorithm
–	I-Algorithm
Pomerance	I-Algorithm
–	I-Algorithm
Rumely	I-Algorithm
primality	I-Algorithm
test	I-Algorithm
is	O
an	O
algorithm	O
for	O
determining	O
whether	O
a	O
number	O
is	O
prime	O
.	O
</s>
<s>
Unlike	O
other	O
,	O
more	O
efficient	O
algorithms	O
for	O
this	O
purpose	O
,	O
it	O
avoids	O
the	O
use	O
of	O
random	O
numbers	O
,	O
so	O
it	O
is	O
a	O
deterministic	B-General_Concept
primality	B-Algorithm
test	I-Algorithm
.	O
</s>
<s>
It	O
was	O
later	O
improved	O
by	O
Henri	O
Cohen	O
and	O
Hendrik	O
Willem	O
Lenstra	O
,	O
commonly	O
referred	O
to	O
as	O
APR-CL	B-Algorithm
.	O
</s>
<s>
uses	O
APR-CL	B-Algorithm
conditionally	O
in	O
its	O
implementation	O
of	O
isprime( )	O
.	O
</s>
<s>
uses	O
APR-CL	B-Algorithm
on	O
certain	O
types	O
of	O
prime	B-Algorithm
tests	I-Algorithm
as	O
a	O
fallback	O
option	O
.	O
</s>
