そいん【素因】
1〔原因〕両派の対立の素因the basic 「factor behind [reason for] the antagonism between the two partiesそれが将来の発展...
そいん【訴因】
a charge; a count（▼countは通例数と一緒に用いられる）彼に対する訴因は殺人であったThe charge (brought) against him was murder.／...
そいんすう【素因数】
a prime factor素因数分解factorization of prime numbers
そいんすうぶんかい【素因数分解】
factorization of prime numbers
