Englishfor English speakers
factor
Noun
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A factor is one of a number of things that causes a result.
The main factor in the success of our program is our excellent teachers.
combination
Noun
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A combination is an item or group made of different things or kinds of things.
Any combination of these factors increases the risk dramatically.
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Combination is the process of putting two or more things together.
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math{C}_{n}^{m}/math