SAT Math Practice Question #28126 - SATify | SATify

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SAT Math Practice Question #28126 - SATify | SATify

#28126

number theory

divisibility

hard

150 sec

For how many positive integers $n$ does $1 + 2 + \dots + n$ evenly divide $4 n$ ?

A.

2

B.

3

C.

4

D.

5

E.

6