It is a composite number.
20 is a composite number. Its factors are 1, 2, 4, 5, 10, and 20. A prime has no factors other that 1 and itself.
81 is not prime, it is composite.
81 is not prime it's a composite number
81 is not a prime number. 81 = 3 * 3 * 3 * 3
1 is neither a prime, nor a composite number. A prime number has only 2 factors which are 1 and itself. Composite numbers are everything else except 1 and 0. 1 and 0 are neither prime, nor composite.
The prime power factorization of 81 is 34.
625 and 81 are relatively prime because they have common prime factors.
34 = 81
The prime factorization of 81 is: 3 X 3 X 3 X 3
find the prime factorization to the number 81
81 and 200 have no common prime factors.
The factors of 81 are: 1 3 9 27 81 The prime factor is: 3