No, it is not.
It is divisible by: 1, 53, 107 and 5671
107
81: 8 + 1 = 9 which is divisible by 9, so 81 is divisible by 9 162: 1 + 6 + 2 = 9 which is divisible by 9, so 162 is divisible by 9 199: 1 + 9 + 9 = 19 → 1 + 9 = 10 → 1 + 0 = 1 which is not divisible by 9, so 199 is not divisible by 9. 1125: 1 + 1 + 2 + 5 = 9 which is divisible by 9, so 1125 is divisible by 9. So 199 is the only one not divisible by 9.
1, 2, 3, 6, 107, 214, 321, 642
No, it is not.
109 is divisble by 9
535 is divisible by 1, 5, 107, 535
9, 18, 27, 36 and just keep adding 9 till you get to infinity.
no
107 is a prime number and is divisible only by 1 and 107.
It is divisible by: 1, 53, 107 and 5671
Itself and one because 107 is a prime number
5671 is not divisible by 7. 1, 53, 107, 5671
No, 492 is only divisible by 1, 2, 3, 4, 6, 12, 41, 82, 123, 164, 246, 492.
By any of its factors which are: 1, 3, 107 and 321
Yes and it is 107