A = 2 × 3 × N2, B = 3 × N3 × 5, (n is prime), then the greatest common divisor of a and B is______ The least common multiple is______ ．

A = 2 × 3 × N2, B = 3 × N3 × 5, (n is prime), then the greatest common divisor of a and B is______ The least common multiple is______ ．

A = 2 × 3 × N2, B = 3 × N3 × 5 (n is prime), so the greatest common divisor of a and B is 3 × N2; the least common multiple of a and B is 2 × 3 × N3 × 5; so the answer is: 3 × N2, 2 × 3 × N3 × 5

Are 1 and 3 mutually prime?
Mutuality is mutuality

According to the definition of Coprime number:
Two numbers with only one common divisor are called coprime numbers
Divisor of 1: 1
Divisors of 3: 1 and 3
The common divisor of 1 and 3 is only 1, which conforms to the definition of Coprime number
1 and 3 are quality numbers, right

How do prime numbers come out
How to calculate, 1, 2, 3, 5 are prime numbers

A prime number is a prime number, that is, no number other than 1 and itself can divide its number
Primes can be calculated by multiplying all the primes you know and adding one
For example, if you know that 2 is prime and 3 is prime, you can get prime 2 x 3 + 6 = 7. If you know that 2 is prime, 3 is prime and 5 is prime, you can get prime 2 x 3 x 5 + 1 = 31