What is the Greatest Common Factor of 1390 and 1410?

Greatest common factor (GCF) of 1390 and 1410 is 10.

GCF(1390,1410) = 10

We will now calculate the prime factors of 1390 and 1410, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 1390 and 1410.

How to find the GCF of 1390 and 1410?

We will first find the prime factorization of 1390 and 1410. After we will calculate the factors of 1390 and 1410 and find the biggest common factor number .

Step-1: Prime Factorization of 1390

Prime factors of 1390 are 2, 5, 139. Prime factorization of 1390 in exponential form is:

1390 = 2¹ × 5¹ × 139¹

Step-2: Prime Factorization of 1410

Prime factors of 1410 are 2, 3, 5, 47. Prime factorization of 1410 in exponential form is:

1410 = 2¹ × 3¹ × 5¹ × 47¹

Step-3: Factors of 1390

List of positive integer factors of 1390 that divides 1390 without a remainder.

1, 2, 5, 10, 139, 278, 695

Step-4: Factors of 1410

List of positive integer factors of 1410 that divides 1390 without a remainder.

1, 2, 3, 5, 6, 10, 15, 30, 47, 94, 141, 235, 282, 470, 705

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 1390 and 1410. The biggest common factor number is the GCF number.
So the greatest common factor 1390 and 1410 is 10.

Also check out the Least Common Multiple of 1390 and 1410