素因 そいん すう分解 ぶんかいじゃなかったです
soinsūbunkaijanakattadesu

Noun
Desu Copula

The polite, past negative form of 素因数分解

1. Wasn't prime factorization.; Wasn't a prime factorization.

Past/Perfective
Negative
Polite
Casual Register
Mathematics