Determine the prime factors of both numbers.
400 = 2 x 2 x 2 x 2 x 5 x 5 = 24 x 52
120 = 2 x 2 x 2 x 3 x 5 = 23 x 3 x 5
The common factors are 23 and 5 : The highest common factor is 23 x 5 = 40.
Common factors are formed from the individual common factors together with any combination of those factors.
This gives :- 2, 22 = 4, 23 = 8, 5, 2 x 5 = 10, 22 x 5 = 20 and 23 x 5 = 40
The common factors of those numbers are 1, 2, 3, 4, 6, 12 The number that they are common factors of is 7560.
The greatest common factor of the numbers 84, 120 and 156 is 12.
Since 12 is a factor of 84, all of its factors are common.
The common factors are: 1, 7
The common factors are: 1, 2.
The GCF of 84 and 120 is 12Definition: A factor is a divisor - a number that will evenly divide into another number. The greatest common factor of two or more numbers is the largest factor that the numbers have in common.Method:One way to determine the common factors and greatest common factor is to find all the factors of the numbers and compare them.The factors of 84 are 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, and 84.The factors of 120 are 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, and 120.The common factors are 1, 2, 3, 4, 6, and 12. Therefore, the greatest common factor is 12.The Greatest Common Factor (GCF) of 120 and 84 is 12.
The common factors of those numbers are 1, 2, 3, 4, 6, 12 The number that they are common factors of is 7560.
The GCF of 64, 84, and 120 is 4.
The greatest common factor of the numbers 84, 120 and 156 is 12.
The common factors of 28 and 84 are 1,2,4,7,14 and 28
The common factors of 28 and 84 are 1,2,4,7,14 and 28.
Common factors of 15 and 84 are: 1 and 3.
Since 12 is a factor of 84, all of its factors are common.
The common factors of 21 42 and 84 are 21
Since 21 is a factor of 84, all of its factors are common.
Factors of 60: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60 Factors of 84: 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84 Factors of 120: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120 GCF (60, 84, 120) = 12
The factors of 84 are 1,2,3,4,6,7,12,14,21,28,42 and 84. To find a greatest common factor, you need to compare them to another number's factors.