18, 1800, 18000
18 36 and the last one 54
126 and 90 (trial and error gets you the answer)
The GCF is 9.
You need at least two numbers to find a GCF. The GCF of 18 and 24 is 6.
18, 36 and 54
18, 1800, 18000
18 and 81
They could be 12 and 18
18 36 and the last one 54
126 and 90 (trial and error gets you the answer)
18 and 9 * * * * * Not so. LCM(9, 18) = 18, not 54. The correct answer is 18, 27.
You can multiply the number 18 by different numbers that are relatively prime, for example by different prime numbers.
6 and 126 and 1812 and 18
A set of numbers can only have one GCF. 6, 12 and 18 have a GCF of 6. 16, 32 and 48 have a GCF of 16. 25, 50 and 75 have a GCF of 25. The GCF of 6, 16 and 25 is 1.
15 + 9 = 24 gcf (15,9) = 3 18 + 6 = 24 gcf(18,6) = 6 6 - 3 = 3
The GCF is 9.