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What are the prime numbers in 189?
The prime numbers (factors) of 189 are: 3 and 7
Which prime numbers equal 289?
The prime number (factor) of 289 is: 17
What is factor tree of 189?
it is the factors of 189
Are 160 and 189 relatively prime?
160 and 189 are relatively prime as they have no common factors other than 1.
Is 189 a prime or composite number?
189 is a composite. Some quick tests, which can be done in your head: Check if the number is even (2 is a factor). Ones place will have 0,2,4,6, or 8 if even. Multiple of 5 (5 is a factor): Ones digit is 0 or 5. Multiple of 3 or 9: Add up the digits in the number; if this sum is 3 or a multiple of 3, then the original number is a multiple of 3 (3 is a factor). Additionally, if this sum equals 9 or a multiple of 9, then 9 is a factor. This is the case for 189 : 1+8+9=18, which is a multiple of 9. Since we found a factor (in addition to 1 & the original number) then the number is composite and not prime.
