I think composite. (:
I divide 166 by 2 and get 83. I then do some tests and determine that 83 is prime, so 2 x 83 = 166.
127 131 137 139 149 151 157 163.
There are six: 137, 139, 149, 151, 157, 163.
1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660 2, 5 and 83 are prime.
The factors of 166 are: 1 2 83 166 The prime factors are: 2 x 83
21 x 831 = 166
The prime factorization is 2 * 83
The factors of 166 are 1, 2, 83 and 166 whereas 2 and 83 are prime factors
No. It is divisible by 2.
Factors: 1,166,2,83 Prime factors: 2, 83
I think composite. (:
81 is not prime. Its prime factorization is 3x3x3x3.
I divide 166 by 2 and get 83. I then do some tests and determine that 83 is prime, so 2 x 83 = 166.
10,002 = 2 x 3 x 166
factors: 1, 2, 3, 6, 83, 166, 249, 498 prime factors: 2, 3, 83
29 and 137 17 and 149 3 and 163 53 and 113