The greatest common factor of 7 and 19, the greatest common factor of 27 and 9?

Both are prime numbers.

Common factor of 7: 1,7

Common factor of 19: 1,19

Their greatest common factor is 1

7 and 19 only the common factor 1 is a coprime number, the greatest common factor is 1, and the least common multiple is their product.

The factor of 7 has

The factor of 19 is

So their greatest common factor is 1.

The factor of 7 has and the factor of 19 has, so they have and only one common factor, "1".

7 is a prime number. So he has a factor of 1,7

19 is also a prime number.

So he has a factor of 1,19

Their common factor is only 1, i.e. the greatest common factor is 1

Because two are coprime, their least common factor is 1, and the maximum is also 1

is 1 because 7 and 19 are coprime numbers, so they are 1

Common factor of 7: 1,7

Common factor of 19: 1,19

Their greatest common factor is 1

7 = 1 times 719 = 1 times 19

So the greatest common factor is 1

Both are prime numbers, and the greatest common factor is 1

19 and 7 are coprime numbers, and the common factor of coprime numbers is only 1

Their greatest common factor is 1

They are coprime numbers, so they are 1

Both of these are prime numbers, 1 of course.

Analysis: The greatest common factor, also known as the greatest common divisor and the greatest common factor, refers to the largest of the common divisors of two or more integers. The greatest common divisor of a, b is denoted as (a, b), similarly, the greatest common divisor of a, b, and c is denoted as (a, b, c), and the approximate number of the largest male bright car of multiple integers also has the same notation. There are many ways to find the greatest common divisor, the common ones are prime factor factorization, short division, tossing and turning division, and more derogation.

The concept corresponding to the greatest common divisor is the least common multiple, and the least common multiple of a, b is denoted as [a, b].

It should be nine. Because they can all get along with nine, that is, 27 can be divided by 9 equals 3, and 9 9 equals 1.

A common factor is an integer in which a number is divisible by several numbers at the same time. If an integer can be a factor of several integers at the same time, the integer is called their common factor. Also known as the common divisor.

For any positive integer.

1 is their common factor. Then the largest number in the common factor is called the greatest common factor.

If there is a number of integers, if there is a number that is their common factor, then this number(s) is called their common factor. And the one that is the largest of all the common factors is called the greatest common factor of these integers.

Common divisor and common multiples.

On the contrary, it is the divisor of both a and the divisor of b, and the common divisor of 12 and the first 15 has a common divisor of 1 and 3, the greatest common divisor.

It's 3. For example, 30 and 40 have a common divisor of 1, 2, 5, 10, and the greatest common divisor is 10.

The common factor, also known as the common divisor. In the narrative of number theory, if n and d are both integers, and there is an integer c such that n = cd, then d is said to be a multiple of n, denoted as d|n (pronounced d divisible by n). If d|a and d|b, let's say d is a common factor of a and b.

According to Pei Shu's theorem, for each pair of integers a and b, there is a common factor d, such that d = ax+by, where x and y are integers, and each common factor of a and b is divisible by this d. Hence the absolute value of d.

It's called the greatest common factor.

To find the greatest common factor of several integers, just take the prime factors that are common to all of them.

multiply, and the resulting product is their greatest common factor.

Because 27 and 9 are exactly multiples, nine is the factor of 27, the greatest common factor of 27 and 9 is nine, and the least common multiple is 27.

Answer: Keemin's minimum common omen factor is 9.

According to equal division, 27 = 3 9, so the greatest common factor is 9.

27 is a multiple of 9, and their greatest common factor is 9.

The greatest common factor is 1, and the algorithm is: Write all the factors of 7 and 9 respectively: the factor of 7 has ; The factor of 9 is ; Find all common factors: 1; Because the common factor is only 1, the greatest common factor of 7 and 9 is 1.

The greatest common factor of 7 and 9 is 1, and the algorithm is:

Write all the factors of 7 and 9 respectively:

The factor of 7 has

The factor of 9 is ;

Find all common factors: 1;

Because the common factor is only 1, the greatest common factor of 7 and 9 is 1.

Because 7 and 9 are coprime numbers, their greatest common factor is 1, and the least common multiple is 7*9=63.

If the two numbers are coprimes, then the greatest common factor is 1, and the least common multiple is the product of these two numbers; If the two numbers are multiples, the greatest common factor is the smaller orange bucket number, and the least common multiple is the larger number; If two numbers have a common factor relation, then the greatest common factor is the product of the common prime factors of the two numbers, and the least common multiple is the product of the common prime factors of the two numbers and the unique prime factors.

Solution: Because 17 and 19 are prime numbers, 17 x 19 = 323

Answer: The comma factor of 17 and 19 is 323.

Answer: The greatest common factor of 19 and 8 is 1, and the least common multiple is 152.

Analysis and answer: The prime factor decomposition of 8 is: 8=2x2x2, and the prime factor decomposition of 19 is:

19 = 1x19, so it can be seen that the factors of 8 and 19 have and only 1, then the greatest common factor = 1, because 8 and 19 are prime numbers of each other, so the least common multiple is 8x19 = 152.

Therefore, the greatest common factor of 19 and 8 is silver 1 and the least common multiple is 152.