To figure this out you should first express the numbers as the product of their prime factors:
27 = 3x3x3
45 = 3x3x5
The next step is to identify any common prime factors. Both numbers have two 3s as prime factors. Multiply these together and you get:
3x3 = 9
Thus 9 is the HCF of 27 and 45.
LCM = product/HCF; the HCF of 27 and 45 is 9 so LCM is 27 x 45/9 ie 135.LCM is the smallest multiple of 2 numbers and can be found by factoring both numbers and multiplying the prime factors having the highest powers.Prime factors of 27 are 33Prime factors of 45 are 32 x 5LCM of 27 and 45 is 33x 5 = 135
The HCF is 1.
The GCF is 1.
27
27
It is: 27
HCF(26, 45) = 1. The numbers are co-prime.
The GCF is 15.
The GCF is 27.
gcf(27, 45, 63) = 9. 27 = 3 x 3 x 3 45 = 3 x 3 x 5 63 = 3 x 3 x 7 hcf = 3 x 3 = 9
The GCF is 5.
The Highest Common Factor (HCF) of 45 and 40 is 5. To find the HCF, you need to determine the largest number that divides both 45 and 40 without leaving a remainder. The factors of 45 are 1, 3, 5, 9, 15, and 45, while the factors of 40 are 1, 2, 4, 5, 8, 10, 20, and 40. The largest number that appears in both lists is 5, making it the HCF of 45 and 40.