What is the HCF of 210 and 504?

Answer 1

The Highest Common Factor (HCF) of two numbers is the largest positive integer that divides both numbers without leaving a remainder. To find the HCF of 210 and 504, you can use the Euclidean algorithm or prime factorization method. In this case, the prime factorization of 210 is 2 x 3 x 5 x 7, and the prime factorization of 504 is 2^3 x 3^2 x 7. To find the HCF, you take the common prime factors with the lowest exponents, which are 2 x 3 x 7 = 42. Therefore, the HCF of 210 and 504 is 42.

Answer 2

The Greatest Common Factor of 210 and 504 is 42

Prime factors of 210: 2 3 5 7

Prime factors of 504: 2 2 2 3 3 7

The intersection is 2 3 7, which is 42