What is the Greatest Common Factor of 70518 and 70538?

Greatest common factor (GCF) of 70518 and 70538 is 2.

GCF(70518,70538) = 2

We will now calculate the prime factors of 70518 and 70538, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 70518 and 70538.

How to find the GCF of 70518 and 70538?

We will first find the prime factorization of 70518 and 70538. After we will calculate the factors of 70518 and 70538 and find the biggest common factor number .

Step-1: Prime Factorization of 70518

Prime factors of 70518 are 2, 3, 7, 23, 73. Prime factorization of 70518 in exponential form is:

70518 = 2¹ × 3¹ × 7¹ × 23¹ × 73¹

Step-2: Prime Factorization of 70538

Prime factors of 70538 are 2, 13, 2713. Prime factorization of 70538 in exponential form is:

70538 = 2¹ × 13¹ × 2713¹

Step-3: Factors of 70518

List of positive integer factors of 70518 that divides 70518 without a remainder.

1, 2, 3, 6, 7, 14, 21, 23, 42, 46, 69, 73, 138, 146, 161, 219, 322, 438, 483, 511, 966, 1022, 1533, 1679, 3066, 3358, 5037, 10074, 11753, 23506, 35259

Step-4: Factors of 70538

List of positive integer factors of 70538 that divides 70518 without a remainder.

1, 2, 13, 26, 2713, 5426, 35269

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 70518 and 70538. The biggest common factor number is the GCF number.
So the greatest common factor 70518 and 70538 is 2.

Also check out the Least Common Multiple of 70518 and 70538