There is no upper limit to common multiples.
Do you mean LEAST Common Multiple? 280
or HIGHEST Common Factor? 2
There is no highest common multiple. Whatever common multiple you come up with as being their highest common multiple, I can always add their lowest common multiple (120) to get a higher common multiple.
The Least Common Multiple (LCM) for 14 20 40 is 280.
It is 2
2
The GCF is 2.
The GCF is 10 The LCM is 120
LCM is 120, which is the multiple of the highest power of prime factors in the given numbers (2^3 x 3 x 5).Least Common Multiple (LCM) for 12 40 is 120
To find the two numbers, we need to consider that their highest common factor is 8 and their lowest common multiple is a multiple of 5. The numbers that satisfy these conditions are multiples of 8 and 5. Therefore, the two numbers are 40 and 80, as they have a highest common factor of 8 and a lowest common multiple of 40.
The least common multiple of 23 , 20 = 460
To determine the least common multiple of two numbers, determine the prime factors of both number. Then, determine the prime factors they have in common. Multiply all their prime factors together and then divide by the prime factors they have in common. The prime factors of 14 are 2 and 7. The prime factors of 40 are 2, 2, 2, and 5. The common prime factors are a single 2. Therefore, the least common multiple is 2 x 7 x 2 x 2 x 2 x 5 ÷ 2 = 7 x 2 x 2 x 2 x 5 = 280.
Did you mean highest common factor? Or perhaps lowest common multiple? Because asking for the highest common multiple would be impossible to answer as the number would go further than the billions and quadrillions and centillions! As an example: 28,000,000,000,000,000,000,000,000,000,000,000 is a multiple of both 35 and 40. You can keep adding zeroes on the end and the number will still be multiples of both numbers. That's why there is confusion about what you're asking. The answer would be undefined since it would have too many zeroes to fit in this text box..
The Least Common Multiple (LCM) for 5 40 is 40.