4, 10 and 20
4 is greater than 3 and is a factor of 20.
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 smallest prime factor of any even number greater than two will always be two (2).
38 is 2 x 19
No, a prime number has as its only two factors: one and itself. The number 2 satisfies this, but even numbers greater than three would have factors of one and itself, and also have 2 as a factor (because it's even) so then it's not prime.
4 is greater than 3 and is a factor of 20.
No, always odd.
Any even number greater than two.
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 factors of 20 are: 1,2,4,5,10,20 So; 4 and 10 are the even factors of 20 which are greater than 3.
The smallest prime factor of any even number greater than two will always be two (2).
38 is 2 x 19
Any even number has at least one even factor.
That's not the factorial of any number. For a start, the factorial of any number greater than or equal to 2 is even, because of the factor 2. The factorial of any number greater or equal to five ends with 0. Another answer: I suspect the questioner meant to ask how to write 8*7*6*5*4*3*2*1 as a factorial. If so, then the answer is "8!"
No, the greatest common factor is never greater than the smallest number. The greatest common factor is the largest integer that divides evenly into all of the numbers listed.
The GCF means it's a factor of both numbers. 10 is not a factor of 57.
There is only one even prime number, and that is 2. The reason is that all even numbers greater than 2 have 2 as a factor.