1, 3, 7, 21
1, 5, 11, 55
Factors of 231: 1, 3, 7, 11, 21, 33, 77, 231 Factors of 55: 1, 5, 11, 55 GCF (231, 55) = 11
6, 10, 15, 21, 55, 91...
55/21 = 213/21
The GCF of 14 and 21 is 7. The factors of 14 are: 1, 2, 7, 14 The factors of 21 are: 1, 3, 7, 21 The common factors are: 1, 7.
It is: 55*21 = 1155
21/55 = ~0.381818
The factors of 42 are: 1, 2, 3, 6, 7, 14, 21, 42The factors of 55 are: 1, 5, 11, 55The factors of 63 are: 1, 3, 7, 9, 21, 63
The factors of 55 are 1, 5, 11, 55.
The LCM of 11, 21, and 55 is 1155, which is the multiple of the highest power of prime factors in the given numbers (3 x 5 x 7 x 11).
It is 55 minus 21 = 34
55 has four factors... 1, 5, 11 & 55
The Least Common Multiple of 21 and 55 is 1155.