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Any pair of prime or relatively prime numbers.

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Any pair of prime or relatively prime numbers.

25 and 36

7 and 11

13 and 19

The pairs that are relatively prime.

Pick pairs of prime numbers. Pick any pairs of prime numbers.

Multiplying two numbers together will create a common multiple. It is sometimes, but not always, the LCM as well.

Since the least common factor of any set of integers is 1, the only pair of numbers that would satisfy that requirement is (1,1)

Q: What two number pairs whose least common factor is the product of the number?

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There cannot be a least common factor of just one number. To be common there need to be at least two numbers.

Every number has 1 as its factor and 1 is the smallest factor of any number. So least common factor of two or more numbers is always 1. Therefore, least common factor of 23 and 25 is 1.

That's known as the least common multiple, or LCM.

The greatest common factor can't be a smaller number than the least common factor, but if you meant least common multiple, 7 and 28 have a GCF of 7 and an LCM of 28.

The least common denominator of 2 and 6 is 6

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The least common factor is: 1

The least common factor of any set of numbers is 1.

The least common factor of any number or set of numbers is 1.

There cannot be a least common factor of just one number. To be common there need to be at least two numbers.

There cannot be a least common factor of just one number. To be common there need to be at least two numbers.

1 is the least common factor of the number 2, number 4 and number 7. 28 is the least common multiple of the number 2, number 4 and 7.

The least common factor of any set of positive integers is 1. The least common multiple of relatively prime numbers is their product.

Assuming the second even number is equal to 4 or greater, than the highest common factor of the two numbers is equal to an even number 2 or greater. Why can't an odd factor be used? Any odd factor must be multiplied by (at least) 2 to create an even product (ie. the 1st even number). That same odd factor must be multiplied by (at least 2) and any other number to create a 2nd even product, thereby making the Greatest Common Factor (at least) 2 times the odd number....which is an even number.

The same as the product of 84 and 90.

Every number has 1 as its factor and 1 is the smallest factor of any number. So least common factor of two or more numbers is always 1. Therefore, least common factor of 23 and 25 is 1.

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