Factors come in pairs because it is necessary to multiply something by something else to obtain a product.
When one of the numbers is a factor of the other.
One is.
17 and 4 have a difference of 13 and is a factor pair of 68
yes
A square number
That happens when one of the numbers is a factor of the other.
Numbers with more than one factor pair are composite numbers.
84,142,228,321,414,612,7
When one of the numbers is a factor of the other.
Those numbers are called factors. A pair of those is called a factor pair.
Prime numbers have one factor pair.
A number can't have a factor greater than itself, so the GCF of a pair of numbers can't ever be greater than the smaller number. The GCF of 9 and 18 is 9.
A factor pair consists of two numbers that, when multiplied together, yield a specific product. For example, the factor pairs of 12 include (1, 12), (2, 6), and (3, 4), since each pair multiplies to give 12. Factor pairs help identify the divisors of a number and can be useful in various mathematical applications.
A prime number
Any pair of prime numbers
84 factor is
factor