43
The factors of 817 are: 1, 19, 43, 817
817 is not a prime, 817=19*43
43h = 817h = 817 / 43 = 19
136.1667
It is: 43*19 = 817
19 × 43 = 817
817
204.25
408.5
To determine which of the numbers is a prime number, we need to check each one individually. 1: 103: 103 is a prime number because it has no divisors other than 1 and itself. In other words, it cannot be evenly divided by any other whole number. 2: 229: 229 is a prime number for the same reason as 103. It has no divisors other than 1 and 229. 3: 817: 817 is not a prime number because it can be divided evenly by numbers other than 1 and itself. Specifically, it can be divided by 17, which gives us 817 รท 17 = 48. So, out of the given numbers, 103 and 229 are prime numbers, while 817 is not a prime number.
172 = 2*2*43 and 817 = 19*43 so their gfc is 43