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If the GCF of two numbers is 1 then the numbers are co-prime or a pair of numbers which have only 1 as their common factoris called co-prime.
Let us check if 15 and 42 share any common factors other than 1.
Factors of 15: 1, 3, 5 and 15.
Factors of 42: 1, 2, 3, 6, 7, 21 and 42.
As it can be seen that 3 is a common factor or GCF of 15 and 42.
So, 15 and 42 are not co-prime.
What else can I help you with?
Are 15 and 24 relatively prime?
No, coprime numbers have no common factors other than one; 15 and 24 both have the factor 3, so they are not coprime.
What is the LCM of 15 and 23?
The number are coprime so their LCM is their product ie 15*23 = 345
15 percent of what number is 42?
%*amount=answer .15(15%) * x = 42 thefore 42/.15= x x=280
What is 15 percent of 42?
15% of 42 = 42*15/100 = 6.3
What is the simplest form of the fraction -32 over 15?
32 and 15 are coprime. As a result, the fraction, -32/15 cannot be simplified.
Is 17 and 15 coprime numbers?
Yes.
What is the least common multiple of 6and 7?
42. The numbers are coprime so their lowest common multiple is their multiple.
Are 15 and 24 relatively prime?
No, coprime numbers have no common factors other than one; 15 and 24 both have the factor 3, so they are not coprime.
What goes in to 15 and 2 evenly?
1. The two numbers are coprime.
What is the greatest common factor of 42 and 19?
GCF(42,19) = 1: the numbers are coprime.
What are the common factors of 8 and 15?
8 and 15 share no common factors aside from 1. 8 and 15 are coprime.
How do you calculate the LCM of 15 and 17?
Since 15 and 17 are coprime, their LCM = 15*17 = 255
What is the LCM of 15 and 23?
The number are coprime so their LCM is their product ie 15*23 = 345
15 percent of what number is 42?
%*amount=answer .15(15%) * x = 42 thefore 42/.15= x x=280
What is 15 percent of 42?
15% of 42 = 42*15/100 = 6.3
What is the simplest form of the fraction -32 over 15?
32 and 15 are coprime. As a result, the fraction, -32/15 cannot be simplified.
What number goes into 14 and 15?
The two number have no common prime factors. i.e. the HCF(14, 15) = 1; they are coprime.
