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.
The factors of 55 are 1, 5, 11, 55.
It is: 55*21 = 1155
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
21/55 = ~0.381818
55 has four factors... 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).
Factors of 25 are 1, 5, and 25. Factors of 55 are 1, 5, 11, and 55. The common factors of 25 and 55 are 1 and 5.
The factors of 55 are 1, 5, 11, and 55. The factors of 121 are 1, 11, and 121. The GCF of 55 and 121 is 11.