862 + 137 = 999
2172 + 862 + 7979 = 11013
999
288.
14
288 + 620 = 908 908 - 341 = 567
288 is divisible by 2 because it's even. 288 is divisible by 3 because the sum of its digits is a multiple of 3. 288 is divisible by 4 because the last two numbers are divisible by 4. 288 is divisible by 9 because the sum of its digits is a multiple of 9.
862%:= 862/100 or 431/50 in fraction
The perimeter of the garden is the sum of the four sides, which we can call a, b, c, and d. Since the perimeter is 288 feet, their sum should be 288 feet. Therefore, a+b+c+d = 288. Because the garden is in the shape of a square, by definition a=b=c=d, so we can give a single variable to the number: a + a + a +a = 288. Simplified, 4a = 288. Divide both sides by 4 to yield 72. Therefore, each side is 72 feet long.
It is: 862 = DCCCLXII
862
1, 2, 431, 862