NO because 3 goes into it
129 is a Composite Number.
No, 129 is not a prime number. A prime number is a natural number greater than 1 that cannot be formed by multiplying two smaller natural numbers. In the case of 129, it can be factored as 3 x 43, so it is not prime.
129 is not a prime number because it has more than two factors and so therefore it is a composite number
129 = 3 x 43
129 is divisible by three, hence it is a composite number.
It is composite. It is divisible by 3.
The 4 factors of 129 are 1, 3, 43, and 129. The prime factors of 129 are 3 and 43.
The prime factorization of 129= 43 times 3
1, -1, 3, -3, 43, -43, 129, -129 3 and 43 are prime.
129 is divisible by 3. 1+2+9=12 and 12 is divisible by 3. That is the rule of divisibility by 3.
129 = 3 x 43
129 - 112 = 17