2 is a prime factor of 12.

2是12的一个质因数。

A prime number can only have 1 and itself as a prime factor.

质数只能有1和它本身作为质因数。

Further, tutor is the prime factor among many impact factors on the graduate students creativity.

在影响研究生创新能力的诸多因素中，导师队伍是根本性因素。

The conduct and behavior of the parties involved and especially that of the defaulting party is therefore a prime factor to be considered.

由此，合同和有关双方当事人，特别是违约方的行为和举动是主要的考虑因素。