They are itself and 1 because 31 is a Prime number
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1 and 837, 3 and 279, 9 and 93, 27 and 31
164,182,241,4
No, you should continue checking for factor pairs even if you find a pair that repeats. A repeating pair indicates that the number is not a prime number, but there may be other factor pairs that have not been identified yet. It is important to exhaust all possible factor pairs to ensure that all factors of the number are identified accurately.
The four factors of 62 are 1, 2, 31, and 62. The factor pairs of 62 are (1, 62) and (2, 31)
1 x 61 is the only factor pair of 61.