do not run slow test with 1 thread

Author: TilmanNeumann

src/test/java/de/tilman_neumann/jml/factor/CombinedFactorAlgorithm1ThreadTest.java

@@ -209,9 +209,9 @@ public void testSomeBiggerNumbers() {
 		assertFullFactorizationSuccess("874186654300294020965320730991996026550891341278308", "2^2 * 3 * 471997 * 654743 * 2855761 * 79833227 * 982552477 * 1052328969055591"); // 170 bit
 		assertFullFactorizationSuccess("11111111111111111111111111155555555555111111111111111", "67 * 157 * 1056289676880987842105819104055096069503860738769"); // 173 bit
 		assertFullFactorizationSuccess("1388091470446411094380555803943760956023126025054082930201628998364642", "2 * 3 * 1907 * 1948073 * 1239974331653 * 50222487570895420624194712095309533522213376829"); // 230 bit
-		// 236 bit, takes ~ 8 seconds with 2 threads on Ryzen3900X
-		assertFullFactorizationSuccess("99999999999999999999999999999999999999999999999999999999999999999999999", "3^2 * 241573142393627673576957439049 * 45994811347886846310221728895223034301839");
 		if (RUN_SLOW_TESTS_TOO) {
+			// 236 bit, takes ~ 8 seconds with 2 threads on Ryzen3900X
+			assertFullFactorizationSuccess("99999999999999999999999999999999999999999999999999999999999999999999999", "3^2 * 241573142393627673576957439049 * 45994811347886846310221728895223034301839");
 			 // 263 bit bit, takes ~ 52 seconds with 2 threads on Ryzen3900X
 			assertFullFactorizationSuccess("10000000000000000000000000000000000000000000000000000000000000000000000000005923", "1333322076518899001350381760807974795003 * 7500063320115780212377802894180923803641");
 			 // 280 bit bit, takes ~ 158 seconds with 2 threads on Ryzen3900X