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Subjects>Math>Math & Arithmetic

How do you know if a number is triangular?

Updated: 9/19/2023

Wiki User

∙ 13y ago

Best Answer

A number, t, is a triangular number if [-1 + sqrt(1+8t)]/2 is an integer.That is equivalent to the requirement that 1+8t is the square of an odd integer.

Wiki User

∙ 9y ago

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Is 63 a Triangular Number?

Is 63 a triangular number I think it is a triangular number.

What is a number that is a triangular number and a triangular number?

013

Is 18 a triangular number?

No, 18 is not a triangular number.

Is 35 a triangular number?

No, 35 is not a triangular number.

Is 53 a triangular number?

No, 53 is not a triangular number.

Related questions

Is 63 a Triangular Number?

Is 63 a triangular number I think it is a triangular number.

What is a number that is a triangular number and a triangular number?

013

Is 100 a triangular number?

no it is not a triangular number

Is 150 a triangular number?

Decimal triangular number it is

When you add two triangular numbers why do they equal to a square number?

They don't necesarily,3 is a triangular number and 10 is a triangular number. Their sum is 13 which is not a square number.They don't necesarily,3 is a triangular number and 10 is a triangular number. Their sum is 13 which is not a square number.They don't necesarily,3 is a triangular number and 10 is a triangular number. Their sum is 13 which is not a square number.They don't necesarily,3 is a triangular number and 10 is a triangular number. Their sum is 13 which is not a square number.

Is 36 a triangular number?

36 is a triangular number, Square number and also a Consecutive number.

Is 33 a triangular number?

No, 33 is not a triangular number.

Is 172 a triangular number?

No, 172 is not a triangular number.

Is 324 a triangular number?

No, 324 is not a triangular number!

Is 18 a triangular number?

No, 18 is not a triangular number.

Is 35 a triangular number?

No, 35 is not a triangular number.

Is 53 a triangular number?

No, 53 is not a triangular number.

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