191 is prime. It has one pair of factors, one and itself.
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factor pair = 36,1 factor pair = 18,2 factor pair = 12,3 factor pair = 9,4 factor pair = 6,6
With the possible exception of a pair of pants or a pair of scissors. 71 is a single number. 7 and 1 is a factor pair of 7.
if you have 54 and you do not understand what the word factor pair means , well the word factor pair is when you try to find something that will multiply to that number for example yo have 30the factor pair would be 1x30, 2x15, 3x10, and 5x4 all of these numbers add up to 30
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 GCF is the factor, the LCM is the other one.