To work this out, you have to split the numbers into the product of their prime factors:
25 = 5x5
40 = 2x2x2x5
The next step is to identify any common factors. In this case, both numbers have a 5 as a prime factor. Thus the HCF of 25 and 40 is 5.
HCF is the highest common factor of two or more numbers. HCF of 25 and 40 is 5.
5
The HCF is 5
5040 ÷ 1000 = 5 r 40 1000 ÷ 40 = 25 r 0 ⇒ hcf of 5040 and 1000 is 40.
The HCF of 40 & 12 is... 4
HCF(40, 63) = 1
The GCF is 25.
The GCF is 25.
The HCF of the numbers 40 and 44 is 4.
The HCF of 25 and 50 is... 25.
25
The HCF is 5.