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Which numbers have 3 but not 4 as a factor?
Take the multiples of 3: 3, 6, 9, 12, 15, 18, 21, 24, etc. Now, eliminate every fourth number in the sequence (the multiples of 4). The remaining numbers will be multiples of 3, but not of 4.
Are 4 and 21 relatively prime?
Yes, 4 and 21 are relatively prime. Numbers that are relatively prime only have the number 1 as a common factor. That is the case with 4 and 21.
What goes into 18 and 21 evenly?
46
What are the 4 factors 21?
1, 3, 7 and 21.
What are the factors of 21 28 and 15?
Factors are those numbers which can be evenly divided into a number. The factors of 21 would be 1, 3, 7, 21 The factors of 28 would be 1, 2, 4, 7, 14, 28 The factors of 15 would be 1, 3, 5, 15
In 21 dares do you do 4 numbers or 3?
you have three turns each
What is the fraction between 3 21 and 4 21?
there is no fraction between the numbers 3 21 and 421
What numbers add to -4 and multiply to get -21?
-25
How do you get the number 21 out of the numbers 1 2 3 4?
1+2=3 3+4=7 7x3=21 (1+2)x(3+4)
What two numbers add up to 4 and multiply to -21?
To find two numbers that add up to 4 and multiply to -21, we can set up a system of equations. Let's call the two numbers x and y. We have the equations x + y = 4 and x * y = -21. By solving these equations simultaneously, we can find that the two numbers are 7 and -3. This is because 7 + (-3) = 4 and 7 * (-3) = -21.
What numbers can you multiply to get 21 and add to get 4?
I think one or both of those have to be negative. -3 + 7 = 4 -3 x 7 = -21 3 + -7 = -4 3 x -7 = -21 7 x 3 = 21 7 - 3 = 4 It also works if you subtract.
What is the average of 4 8 and 9?
4+8+9= 21 divide 21 by 3 (you have three numbers) = 7
What is 21 dares?
21 Dares is a mathmetical concept game. I'm not exactly sure how to play but it has somthing to do with cards! ---------------------------------------- I would like to add something to that. The version of 21 dares that I play doesn't need cards. You need at least 2 people, and you go around in a circle counting upwards in threes until someone says the number '21'. So the person who starts off says either "1" or "1, 2" or "1, 2, 3". You can say a minimum of one number and a maximum of three numbers. And then the second person carries on from where the last person left off, again with a max of three and a min of 1. So, for example, if the first person had said, "1, 2" the second person could say, "3" or "3, 4" or "3, 4, 5". And so on. The person who says "21" must do a dare of any other player's choice.
What two numbers multiply to -21 and add to 4?
-17
Find two numbers that have a product of -21 and a sum of 4?
Well, darlin', the two numbers you're looking for are 7 and -3. Why? Because 7 times -3 equals -21, and when you add 7 and -3 together, you get 4. Simple math, honey, nothing to sweat about.
What is the median for these numbers 21 3 21 4 5 6?
5 or 6. If you want average its 5.5
What 3 numbers added together make 18?
21
