What is the GCF of 45 and 280?
The GCF of 45 and 280 is 5.
Steps to find GCF
- Find the prime factorization of 45
45 = 3 × 3 × 5 - Find the prime factorization of 280
280 = 2 × 2 × 2 × 5 × 7 - To find the GCF, multiply all the prime factors common to both numbers:
Therefore, GCF = 5
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Related
Find hcf of: 90 & 560 135 & 840 225 & 1400 9 & 56 315 & 1960 90 & 280 45 & 560 135 & 280 45 & 840 225 & 280 45 & 1400 315 & 280 45 & 1960
GCF Calculator
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The greatest common factor (GCF) is also known as greatest common divisor (GCD) or highest common factor (HCF).