The only number less than 100 with exactly nine factors is 36. 19 is not one of the factors.
In that range, 12 and 18 are tied with six factors apiece.
12 and 18
1 and 19
12
19 is already prime; no need for a tree.
26 greatest factor is itself, 19 is a prime number so it is 19...they dont have a same common factor but 26 x 19 is 494...
3 isn't a factor of either number.
3 and 19
1 and 38 2 and 19
19 can be both the factor of another number and a multiple. For example, 19 is a multiple of 1 (1 x 19 = 19). This is the only example of where 19 is a multiple of an integer (as 19 is prime). An example of 19 being a factor is when looking at the number 38. 2x19=38, therefore 19 is a factor of 38. There are many numbers (infinitely many) which have 19 as a factor.
Its factor are 1 and 19 because it is a prime number
19 is a prime number, but it is not a factor of 200.
19 is prime. No tree.
If 1 is considered a factor, the only common factor of 21 & 19 is 1, because 19 is a prime number. I'm not sure whether 1 is considered a factor since it does not reduce the original number and it's not a prime number.
Since 19 is a factor of 76, it is automatically the GCF.
A factor is a number that divides into another number. Factors of 19 are 1 and 19. Factors of 49 are 1, 7, and 49. Therefore, 1 is the greatest common factor.
19 is a prime number, so it has no prime factorization.
1 as 19 is a prime number
19 is already prime; no need for a tree.
19 and 38
26 greatest factor is itself, 19 is a prime number so it is 19...they dont have a same common factor but 26 x 19 is 494...