What is the Greatest Common Factor of 490 and 502?
Greatest common factor (GCF) of 490 and 502 is 2.
GCF(490,502) = 2
We will now calculate the prime factors of 490 and 502, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 490 and 502.
How to find the GCF of 490 and 502?
We will first find the prime factorization of 490 and 502. After we will calculate the factors of 490 and 502 and find the biggest common factor number .
Step-1: Prime Factorization of 490
Prime factors of 490 are 2, 5, 7. Prime factorization of 490 in exponential form is:
490 = 21 × 51 × 72
Step-2: Prime Factorization of 502
Prime factors of 502 are 2, 251. Prime factorization of 502 in exponential form is:
502 = 21 × 2511
Step-3: Factors of 490
List of positive integer factors of 490 that divides 490 without a remainder.
1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245
Step-4: Factors of 502
List of positive integer factors of 502 that divides 490 without a remainder.
1, 2, 251
Final Step: Biggest Common Factor Number
We found the factors and prime factorization of 490 and 502. The biggest common factor number is the GCF number.
So the greatest common factor 490 and 502 is 2.
Also check out the Least Common Multiple of 490 and 502
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