What is the Greatest Common Factor of 7455 and 7470?

Greatest common factor (GCF) of 7455 and 7470 is 15.

GCF(7455,7470) = 15

We will now calculate the prime factors of 7455 and 7470, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 7455 and 7470.

How to find the GCF of 7455 and 7470?

We will first find the prime factorization of 7455 and 7470. After we will calculate the factors of 7455 and 7470 and find the biggest common factor number .

Step-1: Prime Factorization of 7455

Prime factors of 7455 are 3, 5, 7, 71. Prime factorization of 7455 in exponential form is:

7455 = 3¹ × 5¹ × 7¹ × 71¹

Step-2: 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-3: Factors of 7455

List of positive integer factors of 7455 that divides 7455 without a remainder.

1, 3, 5, 7, 15, 21, 35, 71, 105, 213, 355, 497, 1065, 1491, 2485

Step-4: Factors of 7470

List of positive integer factors of 7470 that divides 7455 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

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 7455 and 7470. The biggest common factor number is the GCF number.
So the greatest common factor 7455 and 7470 is 15.

Also check out the Least Common Multiple of 7455 and 7470