What is the GCF of 42 and 1890?
The GCF of 42 and 1890 is 42.
Steps to find GCF
- Find the prime factorization of 42
42 = 2 × 3 × 7 - Find the prime factorization of 1890
1890 = 2 × 3 × 3 × 3 × 5 × 7 - To find the GCF, multiply all the prime factors common to both numbers:
Therefore, GCF = 2 × 3 × 7 - GCF = 42
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Find HCF of: 84 & 3780 21 & 945 126 & 5670 14 & 630 210 & 9450 6 & 270 84 & 1890 42 & 3780 126 & 1890 42 & 5670 210 & 1890 42 & 9450 294 & 1890
GCF Calculator
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The greatest common factor (GCF) is also known as greatest common divisor (GCD) or highest common factor (HCF).