11 and 22, among others.
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1. 11 and 19 are both prime numbers.
To find the hcf of three numbers you first need to write them as the product of their prime factors: 11 = 11 88 = 2x2x2x11 44 = 2x2x11 The next step is to identify any common prime factors. In this case, all three numbers have a prime factor of 11. Therefore the hcf of 11, 88 and 44 is 11.
6 and 8
2 and 12
In order to find the other number, we can use the relationship between the HCF and LCM. By multiplying the HCF and LCM together and dividing by one of the numbers, we can find the other number. So, (11 * 7700) / 275 = 308. Therefore, the other number is 308.