What is the Greatest Common Factor of 70640 and 70650?

Greatest common factor (GCF) of 70640 and 70650 is 10.

GCF(70640,70650) = 10

We will now calculate the prime factors of 70640 and 70650, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 70640 and 70650.

How to find the GCF of 70640 and 70650?

We will first find the prime factorization of 70640 and 70650. After we will calculate the factors of 70640 and 70650 and find the biggest common factor number .

Step-1: Prime Factorization of 70640

Prime factors of 70640 are 2, 5, 883. Prime factorization of 70640 in exponential form is:

70640 = 2⁴ × 5¹ × 883¹

Step-2: Prime Factorization of 70650

Prime factors of 70650 are 2, 3, 5, 157. Prime factorization of 70650 in exponential form is:

70650 = 2¹ × 3² × 5² × 157¹

Step-3: Factors of 70640

List of positive integer factors of 70640 that divides 70640 without a remainder.

1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 883, 1766, 3532, 4415, 7064, 8830, 14128, 17660, 35320

Step-4: Factors of 70650

List of positive integer factors of 70650 that divides 70640 without a remainder.

1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 75, 90, 150, 157, 225, 314, 450, 471, 785, 942, 1413, 1570, 2355, 2826, 3925, 4710, 7065, 7850, 11775, 14130, 23550, 35325

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 70640 and 70650. The biggest common factor number is the GCF number.
So the greatest common factor 70640 and 70650 is 10.

Also check out the Least Common Multiple of 70640 and 70650