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What is the greatest common factor for 42 and 21?
21 itself is the greatest common integral factor, since 21 X 2 = 42.
What are the common factors and greatest common factor of 21 and 42?
The common factors of 21 and 42 are 3, 7 and 21. The greatest common factor (GCF) is 21.
What is the greatest common factor of 42 63 ad 21?
The GCF is 21.
What is the greatest common factor 21 and 42?
Since 21 is a factor of 42, it is automatically the GCF.
Greatest common factor of 21 and 42?
The GCF is 21.
What is the greatest common factor of 21 42 84?
It is: 21
What is the greatest common factor or 21 42 and 84?
It is: 21
What is the greastest commn factor of 42 and72?
To find the GCF of two (or more) numbers, factor them , and see which numbers are common to both strings of numbers, and reduce the 'string' to '1'. Hence 2)42 3)21 7)7 = 1 & 2)72 2)36 2)18 3)9 3)3 = 1 Hence one lot of '2' is common to both numbers. Similarly one lot of '3' is common to both numbers. Hence 2 x 3 = 6 is the GCF of '42' & '72'. NB THe other 2's and the '3' and '7' are NOT common factors as they do NOT appear in both strings of numbers.
What is the greatest common factor of 42 and 273?
The GCF of 42 and 273 is 21. 42 = 2 x 21 273 = 13 x 21
What is the greatest common factor of 21 42 and 84?
The GCF is of 21, 42, and 84 is 21.
What the greatest common factor of 42 and 63?
The GCF is 21.
What is the greatest common factor of 42 and 189?
The GCF is 21.
