Yes it is. If the digits of a number added together will divide exactly by three (or nine) then the number itself will also divide exactly by 3 or 9. In this case, 1+8+9=18... which is exactly divisible by 3.
The factors of 189 are: 1 3 7 9 21 27 63 189
The factors of 189 are 1 3 7 9 21 27 63 189 So the largest factor is 189. However, 189 is not a proper factor, even though it is a factor. The largest proper factor is 63. Now 63 is not prime, since is is clearly divisible by 3. The largest prime factor is 7
The factors of 144 are: 1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144 The factors of 189 are: 1, 3, 7, 9, 21, 27, 63, 189 The common factors are: 1, 3, 9 The Greatest Common Factor: 9
4225
The factors of 30 that add up to 9 are 3 and 6. When you multiply these two numbers, you get 30 (3 x 10 = 30), and when you add them, you get 9 (3 + 6 = 9). Therefore, the pair of factors that meet the criteria are 3 and 6.
Factors of 189: 1, 3, 9, 21, 63, 189,
The factors of 189 are 1, 3, 7, 9, 21, 27, 63, and 189. All these factors divide evenly into 189 without a remainder.189 = 9 * 21thus, factors are: 1,3,7,9,21,27,63,189
factors of 189 are 1, 3, 7, 9, 21, 27, 63, and 189
3 and 63 are factors of 189. 7 and 27 are factors of 189. 9 and 21 are factors of 189. Hence, the factors of 189 are 1, 3, 7, 9, 21, 27, 63, and 189.
1, 3, 7, 9, 21, 27, 63, 189.
The common factors of 90 and 189 are 1, 3 and 9.
The factors of 189 are 1, 3, 7, 9, 21, 27, 63, and 189. The factor pairs of 189 are 1 x 189, 3 x 63, 7 x 27, and 9 x 21.
The factors of 189 are: 1 3 7 9 21 27 63 189
The factors of 189 are: 1, 3, 7, 9, 21, 27, 63, 189
189 is a composite number because it has factors other than 1 and itself. It is not a prime number.The 8 factors of 189 are 1, 3, 7, 9, 21, 27, 63, and 189.The factor pairs of 189 are 1 x 189, 3 x 63, 7 x 27, and 9 x 21.The proper factors of 189 are 1, 3, 7, 9, 21, 27, and 63 or,if the definition you are using excludes 1, they are 3, 7, 9, 21, 27, and 63.The prime factors of 189 are 3, 3, 3, and 7. Note: There is repetition of these factors, so if the prime factors are being listed instead of the prime factorization, usually only the distinct prime factors are listed.The distinct prime factors of 189 are 3 and 7.The prime factorization of 189 is 3 x 3 x 3 x 7 or, in exponential form, 33 x 7.33 x 7 = 189.
The 8 factors of 189 are 1, 3, 7, 9, 21, 27, 63, and 189. 3 and 7 are prime.
The factors of 189 are 1 3 7 9 21 27 63 189 So the largest factor is 189. However, 189 is not a proper factor, even though it is a factor. The largest proper factor is 63. Now 63 is not prime, since is is clearly divisible by 3. The largest prime factor is 7