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Earn +20 ptsQ: What is the lcd for 9 and 15 and 21?
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What is the LCM of 9 21 15?
The Least Common Multiple (LCM) for 9 21 15 is 315.
Why are 9-15-21 not Prime numbers?
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
What is the GCF of 6 15 21 and 9?
The GCF is 3.
What is the LCD 9 and 6?
lcd(9, 6) = 18.
What is the lcd of 7 9 and 2?
LCD(7, 9, 2) = 126.
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