Every number is divisible by 21. Any element of the set of numbers of the form 21*k where k is an integer is evenly divisible.
four factors: 1, 3, 7, 21
To find what the factors of a number are you can list the factor pairs: 1 x 21 3 x 7 The factors of 21 are 1, 3, 7, and 21.
The factors of 15 are: 1, 3, 5, and 15.The prime factors of 15 are: 3 and 5.The factors of 21 are: 1, 3, 7, and 21.The prime factors of 21 are: 3 and 7.
The factors of 21 are: 1, 3, 7, 21 The factors of 23 are: 1, 23
The factors of 21 are: 1, 3, 7, 21 The factors of 51 are: 1, 3, 17, 51
The factors of 21 are :1,3,7,21
4 factors they are 1,3,7 and 21
Any of its factors can go into 21 evenly which are: 1, 3, 7 and 21
Four factors.
four factors: 1, 3, 7, 21
Any of its factors which are: 1, 3, 7 and 21
They are: 1 3 7 and 21
The numbers that go into both 21 and 35 are their common factors. The factors of 21 are 1, 3, 7, and 21, while the factors of 35 are 1, 5, 7, and 35. The only common factor between them is 7. Thus, 7 is the greatest common divisor of 21 and 35.
21 has two prime factors.
To find what the factors of a number are you can list the factor pairs: 1 x 21 3 x 7 The factors of 21 are 1, 3, 7, and 21.
441 has many more factors than 2. 441 is 21 squared, and it is also 49 times 9. 3 and 7 are factors as well.
The number 21 has only four factors: 1, 3, 7, and 21. Many number have more than four factors. Among them are 1x2x3x4x5 = 120.