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Why are 9-15-21 not Prime numbers?
ANSWER: 9, 15, 21 are not prime numbers because these numbers have factors other than 1 and themselves. Therefore, 9, 15, 21 are composite numbersFactors of 9 other 1 and itself (9) : 3Factors of 15 other 1 and itself (15): 3, 5Factors of 21 other 1 and itself (21): 3, 7
What is the outlier in 9 15 15 15 16 20 21 21 30?
The outlier in the set of numbers 9, 15, 15, 15, 16, 20, 21, 21, and 30 is 9 and 30. The number 9 is significantly lower than the rest of the values, while 30 is much higher, making both numbers stand out from the overall range of the dataset.
What are the first three odd composite numbers?
9, 15, 21
What numbers go into -315?
1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, -1, -3, -5, -7, -9, -15, -21, -35, -45, -63, -105, -315
What numbers do 9 and 21 go into?
Oh, dude, 9 and 21 both go into numbers that are multiples of both 9 and 21. So, like, they can go into numbers like 63, 126, 189, and so on. It's just basic math, nothing too mind-blowing.
What is the middle of 9 and 21?
The middle of 9 and 21 can be found by calculating the average of the two numbers. To do this, add them together (9 + 21 = 30) and then divide by 2. The result is 15, which is the midpoint between 9 and 21.
How many composite numbers are between 1 and 21?
12 numbers (including 21). The numbers are 4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21.
What are all the numbers that go into 45?
The numbers that go into 45 are 1, 5, 9, 45
What numbers go into 9 and 15 evenly?
1 and 3 go into both.
What are the odd composite numbers of the number thirty?
9, 15, 21, 25, 27, 33
What are 6 numbers divisible by 3 but not 6?
3, 9, 15, 21, 27, 33
What two numbers can be multiplied together to get 315?
63 & 5 21 & 15 9 & 35
