A number is said to be an armstrong if the sum of the cubes of its digits is the number itself. (i.e.)Consider a 2 digit numeral xy, if x^{3} + y^{3} = xy, then xy is an armstrong number. For instance, 371 can be written as 3^{3} + 7^{3} + 1^{3}, which is equal to 371 and hence it is an armstrong number. Use this calculator, and check if a given number is armstrong or not.

A number is said to be an armstrong if the sum of the cubes of its digits is the number itself. (i.e.)Consider a 2 digit numeral xy, if x^{3} + y^{3} = xy, then xy is an armstrong number. For instance, 371 can be written as 3^{3} + 7^{3} + 1^{3}, which is equal to 371 and hence it is an armstrong number. Use this calculator, and check if a given number is armstrong or not.

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Check if 125 is armstrong number.

125 = 1^{3} + 2^{3} + 5^{3}

125 = 1 + 8 + 125

125 = 134

Hence, 125 is not equal to 1^{3}+2^{3}+5^{3}, and so, it is not an armstrong number.