What is the Greatest Common Factor of 70390 and 70408?

Greatest common factor (GCF) of 70390 and 70408 is 2.

GCF(70390,70408) = 2

We will now calculate the prime factors of 70390 and 70408, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 70390 and 70408.

How to find the GCF of 70390 and 70408?

We will first find the prime factorization of 70390 and 70408. After we will calculate the factors of 70390 and 70408 and find the biggest common factor number .

Step-1: Prime Factorization of 70390

Prime factors of 70390 are 2, 5, 7039. Prime factorization of 70390 in exponential form is:

70390 = 2¹ × 5¹ × 7039¹

Step-2: Prime Factorization of 70408

Prime factors of 70408 are 2, 13, 677. Prime factorization of 70408 in exponential form is:

70408 = 2³ × 13¹ × 677¹

Step-3: Factors of 70390

List of positive integer factors of 70390 that divides 70390 without a remainder.

1, 2, 5, 10, 7039, 14078, 35195

Step-4: Factors of 70408

List of positive integer factors of 70408 that divides 70390 without a remainder.

1, 2, 4, 8, 13, 26, 52, 104, 677, 1354, 2708, 5416, 8801, 17602, 35204

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 70390 and 70408. The biggest common factor number is the GCF number.
So the greatest common factor 70390 and 70408 is 2.

Also check out the Least Common Multiple of 70390 and 70408