No.
3 and 107
As a product of its prime factors: 3*5*23 = 345
A prime number is 2 factors and a composite number is 3 or more!
Odd. The only prime number that is even is two. Since there are many prime numbers that are odd (such as 3, 5, etc.), there are more odd prime numbers than even.
1 and 3 are prime. 31 is prime.
Prime numbers are numbers that have only 2 factors, 1 and it's self. Composite numbers are the opposite, they have 3 or more factors.
First you Prime Factorize the two (or more) numbers. The LCM of the two (or more) numbers must contain all the prime factors of the two (or more) numbers that made it. To find the LOWEST common multiple, for each prime factor, find from one of the numbers where the prime factor has the highest power. The highest powers of each prime multiply together to form the LCM of the numbers. e.g. LCM of 36 and 24 36 = (2^2)(3^2) 24 = (2^3)3 LCM = (2^3)(3^2) = 72
LCM is the multiple of the highest power of prime factors of two or more numbers. Since prime numbers have no other factors than themselves, the LCM of two or more prime numbers is their product. As an example, the LCM of 3, 5, and 53 is 3 x 5 x 53 = 795.
Themselves because they are all prime numbers.
You cannot. 40 has more than 3 prime factors.You cannot. 40 has more than 3 prime factors.You cannot. 40 has more than 3 prime factors.You cannot. 40 has more than 3 prime factors.
2, 3 and 5 are prime numbers but 15 is a composite number because it has more than two factors
2, 3, 5 are prime numbers but 9 is not a prime number