The answer is -124
71 - 53 = 18
The greatest common factor of 53 and 71 is 1. Both numbers are prime.
The gcf of 53 and 71 is 1 - b'cos 53 is a prime ( so is 71)
37.63
71 is not a factor of 5141. 5141 = 53 * 97.
53, 57, 59, 61, 67, 71, 73
3, 31, 53, and 71 are primes; 35 is composite, having the factors 1, 5, 7, and 35.
47, 53, 59, 61, 57, 71, 73, 79
57
58
All the prime numbers 50 through 75 are: 53, 59, 61, 67, 71, and 73.
53 59 61 67 71 73 79 83 89 97.