A050709 - OEIS

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A050709

Prime reached after 5 iterations of composite added to sum of prime factors.

49, 50, 52, 56, 84, 88, 169, 176, 180, 198, 220, 302, 322, 336, 339, 363, 364, 372, 387, 402, 406, 407, 424, 429, 434, 442, 492, 494, 508, 552, 553, 562, 589, 612, 628, 633, 650, 708, 724, 744, 760, 788, 816, 819, 843, 848, 860, 861, 862, 870, 872, 896, 918 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,1`
	EXAMPLE	`Iteration 1 -> 49 = 7.7 so 49 + (7+7) = 49 + 14 = 63 and composite.` `Iteration 2 -> 63 = 3.3.7 so 63 + (3+3+7) = 63 + 13 = 76 and composite.` `Iteration 3 -> 76 = 2.2.19 so 76 + (2+2+19) = 76 + 23 = 99 and composite.` `Iteration 4 -> 99 = 3.3.11 so 99 + (3+3+11) = 99 + 17 = 116 and composite.` `Iteration 5 -> 116 = 2.2.29 so 116 + (2+2+29) = 116 + 33 = 149 and prime.`
	CROSSREFS	`Cf. A050703-A050710.` `Sequence in context: A090094 A198435 A165870 * A037412 A176309 A080201` `Adjacent sequences: A050706 A050707 A050708 * A050710 A050711 A050712`
	KEYWORD	`nonn`
	AUTHOR	`Patrick De Geest (pdg(AT)worldofnumbers.com), Aug 15 1999.`

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Last modified February 15 11:03 EST 2012. Contains 205763 sequences.