4
1, 2, 4, 17, 34, 68.
68 is not prime. 68 = 2 * 2 * 17
68 17/.25=68
68 ÷ 4 = 17
17 is a prime number but 68 is Composite.
1, 2, 4, 17, 34, 68.
Yes, 4 x 17 = 68
It is 17.
2 x 2 x 17 = 68
four 17 + 17 = 34 34 + 34 = 68
Four goes into 68 17 times.