The number is 14.
2 56 4 28 8 14
Oh, dude, the Highest Common Factor (HCF) of 28, 14, and 21 is 7. You just gotta find the largest number that divides evenly into all three of those numbers. It's like finding the VIP guest that gets into all the parties without any hassle.
The greatest common factor is the highest number that divides exactly into two or more numbers.14: 1, 2, 7, 1428: 1, 2, 4, 7, 14, 2863: 1, 3, 7, 9, 21, 63The GCF of 14, 28 and 63 is 7.The GCF is 7.
1,764
0.75 21/28 is the same as 3/4 (seven divides both 21 and 28) and three quarters is 0.75
The common multiples of 21 and 28 are 84, 168, 252, 336, ... and so on, never ending; so there is no real Highest Common Multiple.Do you mean:Highest Common Factor - the highest number which divides both 21 and 28 which is 7; orLowest Common Multiple - the lowest number which is a multiple of both 21 and 28 which is 84.
When figuring out what number goes both into 21 and 28, you should look at the factor paris. 21: 1 x 21, 3 x 7 28: 1, 28, 2 x 14, 4 x 7 7 goes into both 21 and 28.
Well, darling, the number in the middle of 14 and 28 is 21. It's like basic math for beginners, sweetie. Just take the average of the two numbers and you'll find your answer.
14 and 21, and 21 and 28 are the number pairs between 15 and 30 that have 7 as their greatest common factor.
GCF(14, 28, 21) = 7
The number is 28.