21
The GCF is 45.
HCF(315, 195) = 15 LCM(315, 195) = 4095
The answer is 21
The GCF is 21.
Factorizations for 231 are: 1) 231 = 1x231 2) 231 = 3x7x11 3) 231 = 21x11 4) 231 = 3x77 5) 231 = 33x7
The HCF of 525 and 231 is 21
The GCF is 45.
HCF(315, 195) = 15 LCM(315, 195) = 4095
The answer is 21
The GCF is 21.
The GCF is 45.
Steps to find out LCM of two numbers(a & b):1- Find HCF of a & b.2- Multiply a and b.3- Divide the result of step 2 by HCF. The result is LCM.1- In order to find out HCF of 540 and 315 we shall use the method of prime factorization.Prime factorization of 540 = 2x2x3x3x3x5Prime factorization of 315 = 3x3x5x7HCF(540, 315) = 3x3x5 = 45.2- Product of 540 and 315.540 x 315 = 170100.3- LCM(540, 315) = 170100/45 = 3780.
The GCF is 1.
The first step is to express these numbers as products of their prime factors: 315 = 3x3x5x7 660 = 2x2x3x5x11 The next step is to identify any common prime factors. In this case the common prime factors are 3 and 5. Multiply these and you get: 3x5 = 15 Thus the HCF of 315 and 660 is 15.
As the word "common" might suggest, HCF is normally defined for two or more numbers, not just one. The highest "common" factor of a single number will be itself so the answer to the question is 315.
In this context, HCF should mean hundred cubic feet, which is approximately 748 US gallons (see related link). To calculate it, use 231 cubic inches to a US gallon, and a cubic foot is (12 in)³ = 1728 cubic inches.
You need at least two numbers to find a GCF. If that's 6 and 15, the GCF is 3.