What is the GCF of 245 and 630?
The GCF of 245 and 630 is 35.
Steps to find GCF
- Find the prime factorization of 245
245 = 5 × 7 × 7 - Find the prime factorization of 630
630 = 2 × 3 × 3 × 5 × 7 - To find the GCF, multiply all the prime factors common to both numbers:
Therefore, GCF = 5 × 7 - GCF = 35
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Find HCF of: 490 & 1260 735 & 1890 1225 & 3150 49 & 126 1715 & 4410 35 & 90 490 & 630 245 & 1260 735 & 630 245 & 1890 1225 & 630 245 & 3150 1715 & 630 245 & 4410
GCF Calculator
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The greatest common factor (GCF) is also known as greatest common divisor (GCD) or highest common factor (HCF).