What is the Greatest Common Factor of 490 and 510?
Greatest common factor (GCF) of 490 and 510 is 10.
GCF(490,510) = 10
We will now calculate the prime factors of 490 and 510, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 490 and 510.
How to find the GCF of 490 and 510?
We will first find the prime factorization of 490 and 510. After we will calculate the factors of 490 and 510 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 510
Prime factors of 510 are 2, 3, 5, 17. Prime factorization of 510 in exponential form is:
510 = 21 × 31 × 51 × 171
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 510
List of positive integer factors of 510 that divides 490 without a remainder.
1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 85, 102, 170, 255
Final Step: Biggest Common Factor Number
We found the factors and prime factorization of 490 and 510. The biggest common factor number is the GCF number.
So the greatest common factor 490 and 510 is 10.
Also check out the Least Common Multiple of 490 and 510
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