71 is a Prime number because it has only two factors whereas 81 is a composite number because it has more than two factors.
61 and 71 are prime numbers the rest are composite numbers
Yes.
41 is prime. 51 is composite. 51=3 x 17 . 71 is prime. 81 is composite. 92 91 is composite. 91 = 7 × 13
Yes.
61 67 71 73 79.
1. The numbers are co-prime
71 multiplied by 81 is 5,751.
The numbers are co-prime so the only common factor is 1.
Least Common Multiple (LCM) for 71 81 is 5,751
71 is a prime number. Its only prime factor is 71.
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.
Yes, 71 is a prime number.