Question

calculate the HCF of 90 and 126 by prime factorization and EDL and verify by both the methods​

Answer 1

90 = 2 × 32 × 5;

126 = 2 × 32 × 7;

Multiply all the common prime factors, by the lowest exponents.

Greatest (highest) common factor (divisor):

gcf, hcf, gcd (90; 126) = 2 × 32

gcf, hcf, gcd (90; 126) = 2 × 32 = 18;

the numbers have common prime factors

Answer 2

Step-by-step explanation:

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