Two numbers that are 2 apart cannot both be multiples of 3 or greater, as there would not be enough space to add the amount on to the lower number. Thus the greatest possible common factor would be 2. Both of the numbers are even, and so can divide by two. Thus we know the HCF of two consecutive even numbers must be 2.
The GCF is 2.
The HCF is always a factor of the LCM of two numbers. The HCF is a factor of both the numbers which are factors of their LCM. Thus the HCF is also a factor of the LCM of the two numbers.
2 actually it also can be 4
No, 2 and 10 are factors of 20. The LCM of 2 and 10 is 10.
draw a flow chart to find hcf of two given numbers
The HCF is the largest number that both numbers can be divided by. If the HCF is 1, that would suggest that the two numbers share no prime factors. Thus, any two numbers which are coprime will have an HCF of 1. Consecutive numbers are good examples here - 15 and 16, 27 and 28, 104 and 105, all have an HCF of 1.
You need at least two numbers to find an HCF.
You need at least two numbers to find an HCF.
The HCF of the given two numbers is 14
Two or more numbers are needed to find the HCF
An HCF is the product of any common prime factors of two numbers. If two numbers have no common prime factors, then the HCF will be 1. For example, 10 and 21. The prime factors are 2x5 and 3x7. There is nothing in common, and so the HCF of 10 and 21 is 1. Two consecutive numbers will always have the HCF of 1.
Two or more numbers are needed in order to find the HCF