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Q: Which whole number has a factor that is greatest prime factor between 1and 30?

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It is: 29

There is no greatest common factor for 41 and 70 because 41 is a prime number.

The greatest factor of any number is the number itself. The second greatest factor of any even number is half the number. The second greatest factor of any composite number is the number divided by its smallest prime factor. The second greatest factor of any prime number is 1.

41 is the greatest prime factor for 1230

Yes. The greatest common factor of 4 and 10 is 2, which is a prime number. The greatest common factor of 51 and 81 is 3, which is a prime number.

It is 1 because 7 is a prime number and is not a factor of 50

This is a question that cannot be answered. First, 64 is not a prime number. Second, the greatest common factor is the factor that two or more numbers have in common. There is no greatest common factor of a single number, such as 64.

If you mean the greatest prime factor of 210 it is 7.

5 is a prime number so the greatest common factor has to be the number 1.

The number divided by its smallest prime factor.

67 is the greatest prime number between 55 and 70

1 is the greatest common factor. 89 is a prime number.

The greatest common factor of 54 and 99 is 9, which is not prime. The greatest common factor of 80 and 114 is 2, which is prime.

5 is the greatest prime factor of 20.

11

7

13

No, that's not true.

The greatest common factor of a prime number & a composite number is 1 if the composite number is not divisible by the prime number. 81(composite number) is not divisible by 29(prime number) so, gcf(29,81) = 1.

7 is the greatest prime factor of 84.

The greatest factor of any number is the number itself. There is no integer that is the greatest factor of every number. One is a factor of every number. One is the GCF of co-prime numbers.

19 is the greatest prime factor of 38 5 is the greatest prime factor of 100

The greatest prime factor of 40 is 5. The greatest prime factor of 63 is 7. They do not have any prime factors in common.

73 is a prime number so 51,3x17 and 73 only have the number 1 as the greatest common factor.

A prime number is any number that only has one and itself as factors. By definition even numbers have a factor of two. Therefore the greatest and only even number that is prime is the number 2.