WebStudy now See answers (2) Best Answer Copy The greatest or highest common factor is the highest number that divides exactly into two or more numbers. 20: 1, 2, 4, 5, 10, 20 45: 1, 3, 5,... WebAs visible, 45 and 30 have common prime factors. Hence, the HCF of 45 and 30 is 3 × 5 = 15. HCF of 45 and 30 by Listing Common Factors. Factors of 45: 1, 3, 5, 9, 15, 45; …
HCF - Highest Common Factor Methods, Properties and Solved …
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WebThe second method to find GCF for numbers 45 and 90 is to list all Prime Factors for both numbers and multiply the common ones: All Prime Factors of 45: 3, 3, 5. All Prime Factors of 90: 2, 3, 3, 5. As we can see there are Prime Factors common to both numbers: 3, 3, 5. Now we need to multiply them to find GCF: 3 × 3 × 5 = 45. WebIt is not difficult to see that the 'Greatest Common Factor' or 'Divisor' for 24 and 80 is 8. The GCF is the largest common positive integer that divides all the numbers (24, 80) without … WebGreatest common factor (GCF) of 40 and 80 is 40. GCF(40,80) = 40. We will now calculate the prime factors of 40 and 80, than find the greatest common factor … foolish house foolish