Check the properties of a positive integer to enter the number in the search box. If you input two numbers separated by a space, the properties of the pair like GCD are shown. If you separate two numbers by a comma, the sequences containing those numbers are listed.

(15, 18)

A = 15

B = 18

Sum	33
Difference	3
A × B	270
A ÷ B	0.8333333333333334
B ÷ A	1.2
GCD	3
LCM	90
Average	16.5

Sum of squares

549

\[ 15^2 + 18^2 = 549 \]

Norm

$\sqrt{ 15^2 + 18^2 } = 23.430749027719962$

Geometric mean

16.431676725154983

(15, 18) is amicable?

Properties of 15 and 18

Properties of 15 and 18: The GCD and LCM of 15 and 18 are 3 and 90 respectively. 15 + 18 = 33, |15 - 18| = 3, 15 * 18 = 270, 15 / 18 = 0.8333333333333334, 18 / 15 = 1.2. The average of 15 and 18 is 16.5 and the norm of them is 23.430749027719962. The geometric mean of two numbers is 16.431676725154983.