Yes
The factors of 615 are 1, 3, 5, 15, 41, 123, 205, 615 For them to be common, they need to be compared to another set of factors. If that's 6 and 15, the common factors are 1 and 3.
Yes - 615/3 = 205
The GCF is 1.
True. Since 615 ends in 5, it is divisible by 5. Since the sum 12, of the digits of 615, is divisible evenly by 3, 615 is divisible by 3.
The positive integer factors of 615 are: 1, 3, 5, 15, 41, 123, 205, 615
it's divisible by 3 = 205. but 615 is not divisible by 9
You need at least two numbers to find a GCF. If that's 6 and 15, the GCF is 3.
The Greatest Common Factor (GCF) is: 123
1230 |2| 615 |5| 123 |41| |3| therefore 1230 = 2 times 5 times 41 times 3
615 = 3 x 5 x 41
615 ÷ 9 = 68 with remainder 3
The least common factor of any set of integers is 1.