211 is the only of the given numbers that is prime.
Yes and it is 211
No 168 is not a prime number it is a composite number
168 is not prime. 168 = 2 * 2 * 2 * 3 * 7
7
no because you can divide it by 2 and a prime number is a number that can only divided by 1 and itself
The easiest way it to make the mixed number into an improper fraction and then multiply: 121/2 = (12 x 2 + 1)/2 = 25/2 ⇒ 121/2 of 168 = 25/2 x 168 = (25 x 168)/2 = 2100
168
To find the prime factors of a number, divide the number by each prime number up to the greatest prime that will go into the number leaving no remainder. This is the process for factorization of 168: 168/2=84 84/2=42 42/2=21 21/3=7 7/7=1 Listing each divisor as a prime factor, the prime factors of 324 iare 2x2x2x3x7.
No because it has more than 2 factors so it is a composite number
28 (22*7)
As a product of its prime factors: 2*2*2*3*7 = 168