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Q: I square my Number and add 23. My Answer is 87. What is the Number?

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87

27, 29 and 31 add up to 87.

-23+87= 64

there is no mode

It is 81

23 - 110 = -87

87 square meters = 936.46 square feet.

The square root of 87 is: ± 9.327379

1, 3, 23, 29, 69, 87, 667, 2001

87 is a not perfect square.

87 is the only 2-digit number that is 6 greater and 13 less than a square, but it is not prime.

Square root of 87 is 9.3. Which is rounded to the nearest tenth.

Assuming that there is a "plus" after the second 58, the answer is - the associative property of addition.

No, the number 87 is composite.

You add 8 to 87 to get 95.

Yes, you can. Using the divisibility rules, you can quickly tell that 87 is divisible by 3 (the digits add up to 15, which is divisible by 3). 3 x 29 = 87

87 is composite.

87 is, itself, a whole number.

87 is not a prime number because 87 is divisible by 3 and 29.

The factors of 87 are 1, 3, 29, and 87, so it is a composite number.

69 over 87 = 23/29

23 and 31 are prime. 36, 62 and 87 are composite.

Jeopardy - 1984 23-87 was released on: USA: 9 January 2007

His number is 8787

The dot after the number 87 is missing.