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What is it called when the product of a pair of numbers is the LCM also?
The numbers are relatively prime, or co-prime.
Are co-prime numbers and twin prime numbers the same?
No - co-prime numbers are pairs of numbers which share no positive integer factors apart from 1. Twin prime numbers are a pair of prime numbers with a difference of 2.
What are the factors of 10999 which is not divisible by 10998?
No factor of 10999 is divisible by 10998. Apart from 1 and 2, any pair of consecutive numbers must be co-prime: that is, they cannot have any prime factor in common.
When a pair of numbers have ONLY 1 as the common factor what is it called?
relatively prime or co-prime.
Is 56 and 14 a pair of co prime numbers?
Common prime number is 2 only.
Pair of numbers whose greatest common factor is the same as one of the number?
Any two prime or relatively prime numbers. 25 and 36, for example.
Is every pair of odd numbers co-prime?
Of course not! For example 3 and 9 are odd, but are not co-prime!
Give a PAIR of numbers whose GCF is 1?
numbers which are co prime have a GCF as 1 For example *2,3 *37,47 *23,24
What composite numbers have GCF of 1?
Any consecutive composite integers, like 34 and 35.
What is the greatest common factor of two consecutive numbers?
The GCF of two consecutive numbers is always 1. The GCF of any set of numbers can't be greater than the smallest of the differences between the numbers.
Why is the LCM also the product of a pair?
Sometimes it is, sometimes it isn't. If the two numbers have a GCF of 1, they are co-prime or relatively prime and their LCM will be their product.
What is the term for numbers whose GCF is 1?
A set of numbers whose GCF is one are called co-prime or relatively prime
