A167526 - OEIS

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A167526

Prime factors of the speed of light in a vacuum, c = 299792458 (m/s).

2, 7, 73, 293339

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OFFSET

1,1

COMMENTS

Note that each prime factor of 299792458 appears with multiplicity 1 in this number.

Giving the speed of light in km/s or cm/s would yield the same prime factors > 5. If time is measured in hours, or distance in miles, feet, inches or similar, then the numerical value of c is no longer an integer.

LINKS

Table of n, a(n) for n=1..4.

FORMULA

299792458 = 2 * 7 * 73 * 293339.

MATHEMATICA

FactorInteger[299792458][[All, 1]] (* Paolo Xausa, Jul 02 2024 *)

PROG

(PARI) factor(299 792 458)~[1, ]

CROSSREFS

Cf. A003678 (speed of light), A132997 (all divisors of c, contains this as subsequence).

Sequence in context: A215637 A119811 A319621 * A064646 A366407 A144905

Adjacent sequences: A167523 A167524 A167525 * A167527 A167528 A167529

KEYWORD

fini,full,nonn

AUTHOR

M. F. Hasler, Nov 18 2009

STATUS

approved