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81 prime or composite?
81 is a composite number. Composite numbers are any number that has more than two factors(one and itself). Therefore, since 3,9, and 27 are factors of 81 that makes it a composite number.
Is 81 and 111 co prime numbers?
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. 81 is composite, 111 is prime.
What is 81 is that a prime?
81 is not prime it's a composite number
Composite numbers up to100 have 1 as their unit's digit?
21, 51, 81, 91.
Is 81 neither prime or composite?
Composite
Which is not a composite number 313968 or 81?
Both 81 and 313968 are composite numbers.
Which of these numbers are composite 53 81 41 47 31?
If you mean: 53 81 41 47 and 31 then 81 is a composite number while all the rest are prime numbers
81 prime or composite?
81 is a composite number. Composite numbers are any number that has more than two factors(one and itself). Therefore, since 3,9, and 27 are factors of 81 that makes it a composite number.
Is 51 61 71 81 91 a prime or composite?
61 and 71 are prime numbers the rest are composite numbers
What are composite not prime numbers 3 27 38 81?
3 is prime. Rest are composite.
How many composite numbers between 81 and 100?
number of composite numbers between 81 and 100 = 15composite numbers between 81 and 100 = 82, 84, 85, 86, 87, 88, 90, 91, 92, 93, 94, 95, 96, 98, 99
Is 81 and 111 co prime numbers?
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. 81 is composite, 111 is prime.
What is 81 is that a prime?
81 is not prime it's a composite number
Is 81 27 and 9 prime numbers?
No because they are all composite numbers having more than two factors
Composite numbers up to100 have 1 as their unit's digit?
21, 51, 81, 91.
Is 81 prime composite or neather?
It is composite.
What are the composite numbers between 80 and 90?
81, 82, 84, 85, 86, 87, 88. 80 and 90 are composite too
