A129673 - OEIS

A129673

Right truncatable primes in base 7 (written in decimal form).

2, 3, 5, 17, 19, 23, 37, 41, 137, 139, 163, 167, 263, 293, 977, 1171, 1847, 2053, 6841

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OFFSET

1,1

COMMENTS

There are exactly 19 right truncatable primes in base 7.

LINKS

I. O. Angell and H. J. Godwin, On Truncatable Primes, Math. Comput. 31, 265-267, 1977.

Eric Weisstein's World of Mathematics, Truncatable Prime.

EXAMPLE

263 is a term because 524_7 = 263_10, 52_7 = 37_10, and 5_7 = 5_10 and 263, 37 and 5 are all prime numbers. - Bernard Schott, Jan 25 2019

CROSSREFS

KEYWORD

nonn,fini,full,base

AUTHOR

STATUS

approved