What is the GCF of 42, 63 & 140?
getcalc.com's HCF or GCF calculator & step by step work to find what is GCF of 42, 63 and 140.
GCF(42, 63, 140) = 7
The Greatest or Highest Common Factor 7 divides each one of the integer of this group. By using this GCF calculator & the work with steps, grade school students, teachers or parents can verify the results or the workout for HCF of 42, 63 & 140.
How to find HCF(42, 63, 140)?
The below is the step by step work for how to find what is the GCF of three numbers 42, 63 & 140.
Problem & Workout :
step 1 Address the method, input parameters & values
Integers: 42, 63, 140
find gcf (42, 63 and 140) = ?
step 2 Find the prime factors of all integers of the group
42 = 2 x 3 x 7
63 = 3 x 3 x 7
140 = 2 x 2 x 5 x 7
step 3The common prime factor or the product of all common prime factors between all integers is the highest common factor of this group of integers (42, 63 & 140).
GCF(42, 63, 140) = 7
