3, 7 and 9
7, 9 and 21
3, 7, 9
The Least Common Multiple of 9, 7, and 3 is 63.
The LCM of 7 and 9 is 63.
The LCM of 9 and 21 is 63, which is the multiple of the highest power of prime factors from both numbers, is 63. (3² x 7 = 3 x 3 x 7 = 63).
LCM(a,b) = (ab)/(GCF(a,b)) 63 factors to [3 3 7] 15 factors to [3 5] common factors: [3] 63 * 15 / 3 = 315 ■
63 = 3 x 3 x 7, so there are more than one combination: 7 & 9 and 21 & 9. That should be it, unless you want to consider the somewhat trivial combinations : 63 & 21, 63 & 9, 63 & 3, 63 & 7.
The LCM is 63.
The LCM of 36 and 63 is 252. To find the LCM, find the prime factorization of both numbers. The prime factorization of 36 is 3*3*2*2 The prime factorization of 63 is 3*3*7 3*3*2*2*7=252
Since 63 is a multiple of 9, it is automatically the LCM.
The LCM is: 63
LCM OF 9,3 AND 21 IS 63. CHECK FOR YOURSELF IF YOU ARE NOT SURE.
The LCM is 63.