Question

Find the HCF of 360, 405 and 630

Answer 1

Answer:

45

Step-by-step explanation:

Solution by Factorization:

The factors of 360 are: 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360

The factors of 405 are: 1, 3, 5, 9, 15, 27, 45, 81, 135, 405

The factors of 630 are: 1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630

Then the greatest common factor is 45.