hard · GMAT Quant
A telecommunications transmitter modulates frequency step F_n according to F_1 = 12 and F_n+1 equiv F_n + 27 pmod70 for n ≥ 1. Channels are filtered when F_n is a prime number.
What is the value of F_183?
- 26
- 53
- 14
- 68
- 39
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