The GCF is 80.
It's 5. Because 5 divides evenly into both of the numbers.
The greatest common factor (GCF) of 45 and 20 is 5.Prime factors:45 = 5×3×320 = 5×2×2the only prime factor in both is 5, and so the highest common factor is 5.Alternative method:45 mod 20 = 520 mod 5 = 0so HCF = 5.
Answer: Infinity or there is none.One common multiple of 16 and 20 is 320. If you double it, which is 640, you have a larger common multiple. If you double it again, which is 1320, you have an even larger common multiple. You can continue doubling it forever, so there is no greatest common multiple, or it can be said to be infinite.The greatest common multiple of any set of numbers is infinite.
A factor of 320 is 32. All the factors of 320 are 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 65, 80, 160, 320 Prime factors are 2 and 5.
The greatest common factor (GCF) is 64.
The GCF of 320 and 840 is 40.
20
Since 20 is a factor of 320, it is automatically the GCF.
5
Since 40 is a factor of 320, it is automatically the GCF.
The GCF is 10.
The GCF is 80.
The GCF is 16.
The GCF is 5.
The GCF is 320.
The GCF is 64.