answersLogoWhite

0

It is part of the series known as the triangular numbers.

User Avatar

Wiki User

15y ago

What else can I help you with?

Related Questions

What is the next number in the number pattern 3 6 10 15?

21: (3)+3=(6)+4=(10)+5=(15)+6=(21)


What is the missing number 10 15 28?

To find the missing number in the sequence 10, 15, 28, we can look for a pattern in the differences between the numbers. The difference between 10 and 15 is 5, and the difference between 15 and 28 is 13. If we assume a pattern in the differences, the missing number could be 21, which fits as the average of 15 and 28. Thus, the sequence could be 10, 15, 21, 28.


What is 5 over 7 minus 5 over 21?

5/7 - 5/21 = 15/21 - 5/21 = 10/215/7 - 5/21 = 15/21 - 5/21 = 10/215/7 - 5/21 = 15/21 - 5/21 = 10/215/7 - 5/21 = 15/21 - 5/21 = 10/21


What is Complete the pattern and find the rule 3 6 10 15?

The difference increases by one. 3, 6, 10, 15, 21, 28, 36 and so on.


What are the six smallest keys that you can create by multiplying two different prime numbers?

They are 6, 10, 14, 15, 21, 22.They are 6, 10, 14, 15, 21, 22.They are 6, 10, 14, 15, 21, 22.They are 6, 10, 14, 15, 21, 22.


What is seven tenths of 15?

7/10 of 15 = 15*7/10 = 21/2


What is the slope of 6 -10 -15 15?

Points: (6, -10) and (-15, 15) Slope: (-10-15)/(6--15) = -25/21


What is 25 plus 15 plus 21 plus 10 plus 11?

25 + 15 + 21 + 10 + 11 = 82


What are the release dates for Catch 21 - 2008 2009-10-15?

Catch 21 - 2008 2009-10-15 was released on: USA: 15 October 2009


Is 15 over 21 equivalent to 10 over 14 and why?

Yes. 15*(2/3) = 10 and 21*(2/3) = 14


Which pair of number is relatively prime 10 and 21 12 and 54 15 and 27 21 and 39?

10 and 21


What is the pattern rule for 1-3-6-10-15?

21-28-36-45-55-66-74-87-101