What is the Greatest Common Factor of 7470 and 7479?

Greatest common factor (GCF) of 7470 and 7479 is 9.

GCF(7470,7479) = 9

We will now calculate the prime factors of 7470 and 7479, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 7470 and 7479.

How to find the GCF of 7470 and 7479?

We will first find the prime factorization of 7470 and 7479. After we will calculate the factors of 7470 and 7479 and find the biggest common factor number .

Step-1: Prime Factorization of 7470

Prime factors of 7470 are 2, 3, 5, 83. Prime factorization of 7470 in exponential form is:

7470 = 2¹ × 3² × 5¹ × 83¹

Step-2: Prime Factorization of 7479

Prime factors of 7479 are 3, 277. Prime factorization of 7479 in exponential form is:

7479 = 3³ × 277¹

Step-3: Factors of 7470

List of positive integer factors of 7470 that divides 7470 without a remainder.

1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 83, 90, 166, 249, 415, 498, 747, 830, 1245, 1494, 2490, 3735

Step-4: Factors of 7479

List of positive integer factors of 7479 that divides 7470 without a remainder.

1, 3, 9, 27, 277, 831, 2493

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 7470 and 7479. The biggest common factor number is the GCF number.
So the greatest common factor 7470 and 7479 is 9.

Also check out the Least Common Multiple of 7470 and 7479