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Prime factorization of 9 = 3x3
Prime factorization of 21 = 3x7
Prime factorization of 35 = 5x7
3 is common in P.F. of both 9 and 21. 7 is common in P.F. of both 21 and 35.
L.C.M. = Multiplication of common numbers x Multiplication of uncommon numbers L.C.M. = 3x7(common numbers) x 3x5(uncommon numbers) = 21x15 = 315
Wiki User
∙ 13y ago
Wiki User
∙ 6y agoLCM of 9 15 and 21 is 315.
Prime Factorization:
9 = 3 x 3
15 = 3 x .......5
21 = 3 x ............7
35 =.............5 x 7
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LCM=3 x 3 x 5 x 7 = 315
Wiki User
∙ 7y agoThe LCM of 12, 15, and 21 is: 420
Wiki User
∙ 10y agoThe Least Common Multiple (LCM) for 9 10 12 21 is 1,260.
Wiki User
∙ 13y agoLeast common multiple of 12 15 and 21 is 420.
Wiki User
∙ 14y agoThe LCM of 9, 12, 16 and 21 is 1008.
Wiki User
∙ 7y ago315
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The least common multiple (LCM) is often also called the lowest common multiple or smallest common multiple. Keep in mind that these different terms all refer to the same thing: the smallest positive integer which is a multiple of two or more numbers.The least common multiple of 5, 15, and 21 is 105.
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What is the least common multiple pf 21 and 15?
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What is the Least common Multiple of 15 21?
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The LCM of 15, 21 and 35 is 105.
What is the least common multiple of 6 15 21?
210
What is the least common multiple of 14 15 21?
210
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420
