what is the grearest common factor of 45 81 and 63

Question

greatest common factor of 45 81 and 63 and the reason why it i that number

Answer 1

the greatest multiple would be infinity

 

If you mean the greatest common factor:

45 = 3 * 3 * 5

63 = 3 * 3 * 7

81 = 3 * 3 * 3 * 3

they all have 3 * 3 in common

the greatest common factor is 3 * 3 = 9

 

if you mean the least common multiple:

45 = 3 * 3 * 5

63 = 3 * 3 * 7

81 = 3 * 3 * 3 * 3

the least common multiple is 3 * 3 * 3 * 3 * 5 * 7 because that has all the parts needed to make each of the three numbers

3 * 3 * 3 * 3 * 5 * 7 = 2835

Answer 2

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