4 factors they are 1,3,7 and 21
21 has two prime factors.
The factors of 21 are 1, 3, 7, and 21
The factors of 21: 1, 3, 7, 21.
The factors of 21 are: 1, 3, 7, 21.
The factors of 21 are :1,3,7,21
The factors of 21 are: 1,3,7, and 21.
The factors of 21 are 1,3,7, and 21. The factors of 70 are 1,2,5,7,14,35, and 70 The common factors of 21 and 70 are 1 and 7.
The factors of 21 are: 1 3 7 21 The prime factors are: 3 and 7
The factors of 14 are: 1, 2, 7, 14 The factors of 21 are: 1, 3, 7, 21
21 has four factors: 1, 3, 7 and 21.
The factors of 21 are: 1, 3, 7, 21.
The factors of 21 are: 1, 3, 7, 21 The factors of 27 are: 1, 3, 9, 27
The factors of 21 are 1, 3, 7 and 21. For them to be common, they need to be compared to another set of factors.
The factors of 21 are 1, 3, 7, and 21. The factors of 49 are 1, 7, and 49.
The factors of 21 are: 1, 3, 7, 21 The factors of 249 are: 1, 3, 83, 249
The factors of 18 are: 1, 2, 3, 6, 9, and 18.The prime factors of 18 are: 2 and 3.The factors of 21 are: 1, 3, 7, and 21.The prime factors of 21 are: 3 and 7.