Q: What is a square number that is also a triangular?

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1, the first triangular number, is also a square.

36 is the only square number that is also a triangular number between 20 and 40.

144 is a square number, not a triangular number.

Yes. 36 is a triangular number, because it is 1+2+3+4+5+6+7+8, and it is also a square number, because 36=6x6. 1 is another square number that is traditionally considered to be triangular.

It is 13 squared, but it's not a triangular number

Related questions

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

1, the first triangular number, is also a square.

There are an many triangular numbers that are also square numbers. Simply put, the sum of two consecutive triangular number equals a square number. Examples include 1 and 36.

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.

36 is the only square number that is also a triangular number between 20 and 40.

144 is a square number, not a triangular number.

Yes. 36 is a triangular number, because it is 1+2+3+4+5+6+7+8, and it is also a square number, because 36=6x6. 1 is another square number that is traditionally considered to be triangular.

It is 13 squared, but it's not a triangular number

If you define a rectangular number as a number which is the product of two consecutive integers, it cannot be square.

1 is a triangular and square number, and it is less than 60.

A number, t, is a triangular number if (1 + 8t) is a square of an odd number.

No - but it is a square number. 1,3,6,10,15,21 & 28 are all triangular numbers. 1,4,9,16,25 & 36 are all square numbers.