What is the GCF of 143 and 49?
The GCF of 143 and 49 is 1.
Steps to find GCF
- Find the prime factorization of 143
143 = 11 × 13 - Find the prime factorization of 49
49 = 7 × 7 - To find the GCF, multiply all the prime factors common to both numbers:
Note that there are no common prime factors. - Therefore, GCF = 1 (since 1 is a factor of every number)
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Related
Find HCF of: 286 & 98 429 & 147 715 & 245 1001 & 343 286 & 49 143 & 98 429 & 49 143 & 147 715 & 49 143 & 245 1001 & 49 143 & 343
GCF Calculator
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The greatest common factor (GCF) is also known as greatest common divisor (GCD) or highest common factor (HCF).