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67 is the greatest prime number between 55 and 70
The number between 50 and 60 is 55 because they are both five away from 55. 60-5 equals 55. 50 plus 5 equals 55. So they are equal.
Well, darling, the number between 50 and 60 is 55. It's like the middle child of the number family, always stuck between its siblings 50 and 60. So, there you have it, 55 is the lucky winner of being sandwiched between those two digits.
55 is not a prime number because you can do 5*11=55. The definition of a prime number is a number that has only the factors of 1 and itself. Because 55 has 1*55-55 AND 5*11=55 it is not a prime number. Hope that helps!!
59 is the first prime number after 55.