The Least Common Multiple (LCM) for 9 21 15 is 315.
ANSWER: 9, 15, 21 are not prime numbers because these numbers have factors other than 1 and themselves. Therefore, 9, 15, 21 are composite numbersFactors of 9 other 1 and itself (9) : 3Factors of 15 other 1 and itself (15): 3, 5Factors of 21 other 1 and itself (21): 3, 7
The GCF is 3.
lcd(9, 6) = 18.
LCD(7, 9, 2) = 126.
LCD(9, 21) = 63
LCD(9, 15) = 45
LCD(21, 13, 14, 15) = 2730
It is: 105
20
LCD(49, 21) = 147
126
360
the LCD is the LCM (least common multiple) of the two number which is 105 in this case
but no hellop
245
LCD is y E