673

This number is a prime.

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673 is the smallest multidigit prime as the reversal of the first K Fibonacci integers. In this case K=12, because 1+1+2+3+5+8+13+21+34+55+89+144 = 376. [Rivera]

Submitted: 2020-06-07 11:30:51; Last Modified: 2020-06-07 16:16:18.