The only common factor is 1.
1 is the only common factor of 18 and 61.
The GCF is 1.
The first common multiple (but not the lowest) of 6, 9 and 18 - that falls between 61 & 107 is... 72
3.3889
61
3 with remainder 7.
The factors of 61 are 1 and 61. For them to be common, they need to be compared to another set of factors.
79-18 = 61
34 + 61 - 64 + 18 = 13
if ur 18 and weigh 61 pounds that is BAD, I'm 11 and 61 lbs and I'm almost underweight.
Not lowest common, nor even denominator. You have to have at least two numbers to have a common denominator, just a factor, which 61 only has two; 1 and 61. 61's a prime number.
The greatest common factor of 61 and 46 is 1.