Urwa yupa sutiyuq p'anqap pukyu qillqanta qhaway

Yupana kamaychaw, '''urwa yupa''' nintsik huk wari yupata ishkaylla rakiqnin kaptin. Kaymi ñawpa urwa yupakunapa qurqan:
:{{ecuación|
<math> \mathcal{P} = \{ 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67,71, 73, 79, 83, 89, 97,\, ...,\} \,\ s \in\mathcal{P}  , \,\ s \le 97 </math>|}}
==Kayninkuna==
: <math>s \in \mathcal{Z}_+ \,\ s \ge 1, rakinniqkuna \,\ d_s \ge 3  </math>, ''s''-qam '''kapuq yupa''' shutin.
: <math>2</math>-llam mahayuq urwa yupa, wakinkaqqa tsulla yupam.
: <math> \mathcal{P} </math>qam mana ushayninnaq qurqa, 
: <math> \mathcal{P} </math> pa <math> \mathcal{N}\, \ </math> wari yupa qurqapa, kaqninkuna tinkunmi. <math> |( \mathcal{P})| = |( \mathcal{N})| </math>
: <math> \mathcal{Z_+} = \{1\} \cup \mathcal{P} \cup \mathcal{K} </math>, <math> \mathcal{K} </math>-qa kapuq yupa qurqam.

· [[Katiguriya:Yupay yachay]]