SAT Math Practice Question #26813 - SATify | SATify

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SAT Math Practice Question #26813 - SATify | SATify

#26813

prime numbers

sequences and series

number theory

easy

60 sec

How many of the first ten numbers of the sequence $1, 11, 111, 1111, \dots$ are prime numbers?

A.

0

B.

1

C.

2

D.

3

E.

4