Answer:
The GCF of 19 and 13 is 1
Explanation:
The only number 19 and 13 have in common is one
Answer: GCF = 1
A factor is a whole number that when multiplied by another whole number equal given number.
Factors of 19: 1 and 19
Factors of 13: 1 and 13
The only factor the two numbers have in common is 1
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